{
  "game": "Order of the Sinking Star",
  "revision": "low-beamcasters-selected-layouts-2026-10-23-remaining29-display-upgrades-2026-10-25",
  "sourceId": "low-beamcasters-candidate-classification",
  "counts": {
    "matchedArticleRooms": 96,
    "boardCards": 96,
    "textOnly": 0,
    "unassignedArticleRooms": 7,
    "separateOverworldStills": 29
  },
  "markerReview": {
    "revision": "low-beamcasters-original-frame-marker-review-2026-10-23",
    "basis": "Marker centers were checked against the original 960x540 source frames and original-scale crops; labels name visible landmarks."
  },
  "displayPolicy": {
    "noindex": true,
    "sourceHints": "Article-reported paraphrases; not independently replayed.",
    "routesAndFinishes": "Not independently verified.",
    "exactPtsKnown": false,
    "depotMapping": "unverified"
  },
  "cards": [
    {
      "levelId": "no_murder_weapon_wizard",
      "articlePuzzleNumber": 1,
      "levelSet": "monsters_and_beams",
      "levelSetPosition": 1,
      "candidateThemeGroup": "monsters_and_beams",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-001-source.webp",
        "cue": "Article puzzle 1; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Use green light through the wall.",
        "借绿光隔墙转化哥布林。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 1 selected layout",
          "zh": "Low Beamcasters 文章第 1 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-001.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 1,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-001-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "5f9f142b3a3f04b3f3d7b93a6f28e03d7b860415ddd29e0020c435ccd401770c",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-001-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "5f9f142b3a3f04b3f3d7b93a6f28e03d7b860415ddd29e0020c435ccd401770c",
            "imageSha256": "9b752f60ca5f39b8c781632869b8fdd8bed5b96a4d96a4416446e952dd323455",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "1",
                "color": "#168bd2",
                "center": {
                  "x": 367,
                  "y": 351
                },
                "rect": [
                  339,
                  323,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "green emitter at the lower-left edge",
                  "zh": "左下边缘的绿色发射器"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 1 selected layout; ring marks green emitter at the lower-left edge.",
              "zh": "Low Beamcasters 文章第 1 题选定布局；圆环标出左下边缘的绿色发射器。"
            },
            "instruction": {
              "en": "Use green light through the wall.",
              "zh": "借绿光隔墙转化哥布林。"
            },
            "result": {
              "en": "Ring marks green emitter at the lower-left edge.",
              "zh": "圆环标出左下边缘的绿色发射器。"
            },
            "sourceCue": "Low Beamcasters article puzzle 1; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "no_murder_weapon_0",
      "articlePuzzleNumber": 2,
      "levelSet": "monsters_and_beams",
      "levelSetPosition": 2,
      "candidateThemeGroup": "monsters_and_beams",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-002-source.webp",
        "cue": "Article puzzle 2; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Place Druid inside before pushing.",
        "先让德鲁伊进入墙内。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 2 selected layout",
          "zh": "Low Beamcasters 文章第 2 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-002.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 2,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-002-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "f6a798ed1d96706ecf7e0147f5306f37cef9f0b1ea60466f90aa01551702f494",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-002-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "f6a798ed1d96706ecf7e0147f5306f37cef9f0b1ea60466f90aa01551702f494",
            "imageSha256": "9225c84eb216cfb1e5f190ff61870ed12322601c62b903c92ead38c9a7b03616",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "2",
                "color": "#168bd2",
                "center": {
                  "x": 292,
                  "y": 150
                },
                "rect": [
                  264,
                  122,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "magenta pad on the left red block",
                  "zh": "左侧红色方块上的洋红色垫"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 2 selected layout; ring marks magenta pad on the left red block.",
              "zh": "Low Beamcasters 文章第 2 题选定布局；圆环标出左侧红色方块上的洋红色垫。"
            },
            "instruction": {
              "en": "Place Druid inside before pushing.",
              "zh": "先让德鲁伊进入墙内。"
            },
            "result": {
              "en": "Ring marks magenta pad on the left red block.",
              "zh": "圆环标出左侧红色方块上的洋红色垫。"
            },
            "sourceCue": "Low Beamcasters article puzzle 2; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "dragonsweeper",
      "articlePuzzleNumber": 3,
      "levelSet": "monsters_and_beams",
      "levelSetPosition": 3,
      "candidateThemeGroup": "monsters_and_beams",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-003-source.webp",
        "cue": "Article puzzle 3; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Place dragon where its fire exits.",
        "把龙放在火焰能穿出的墙格。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 3 selected layout",
          "zh": "Low Beamcasters 文章第 3 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-003.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 3,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-003-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "309d32a00328dcb511211764e37dee8c29bfced553e56d8cc3cf510d46da8a30",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-003-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "309d32a00328dcb511211764e37dee8c29bfced553e56d8cc3cf510d46da8a30",
            "imageSha256": "84cf021f67f6983f423b9e10c25d29c3d3089cafa082a5058ff5855bdb956600",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "3",
                "color": "#168bd2",
                "center": {
                  "x": 471,
                  "y": 230
                },
                "rect": [
                  443,
                  202,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "raised teal block",
                  "zh": "抬高的青绿色方块"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 3 selected layout; ring marks raised teal block.",
              "zh": "Low Beamcasters 文章第 3 题选定布局；圆环标出抬高的青绿色方块。"
            },
            "instruction": {
              "en": "Place dragon where its fire exits.",
              "zh": "把龙放在火焰能穿出的墙格。"
            },
            "result": {
              "en": "Ring marks raised teal block.",
              "zh": "圆环标出抬高的青绿色方块。"
            },
            "sourceCue": "Low Beamcasters article puzzle 3; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "green_goblins",
      "articlePuzzleNumber": 4,
      "levelSet": "monsters_and_beams",
      "levelSetPosition": 4,
      "candidateThemeGroup": "monsters_and_beams",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-004-source.webp",
        "cue": "Article puzzle 4; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Separate one goblin with green light.",
        "用绿光隔开一只哥布林。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 4 selected layout",
          "zh": "Low Beamcasters 文章第 4 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-004.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 4,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-004-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "e3c531e09ff92f94da149f6dc51ca331d3a62ec60e42329b4345322ff7cf402e",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-004-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "e3c531e09ff92f94da149f6dc51ca331d3a62ec60e42329b4345322ff7cf402e",
            "imageSha256": "3f79002c7b34ff3f6c2a77b7e90c449075da80693a2c6121cc5a2925cd7610ad",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "4",
                "color": "#168bd2",
                "center": {
                  "x": 575,
                  "y": 277
                },
                "rect": [
                  547,
                  249,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "green emitter beside the inner fence",
                  "zh": "内侧围栏旁的绿色发射器"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 4 selected layout; ring marks green emitter beside the inner fence.",
              "zh": "Low Beamcasters 文章第 4 题选定布局；圆环标出内侧围栏旁的绿色发射器。"
            },
            "instruction": {
              "en": "Separate one goblin with green light.",
              "zh": "用绿光隔开一只哥布林。"
            },
            "result": {
              "en": "Ring marks green emitter beside the inner fence.",
              "zh": "圆环标出内侧围栏旁的绿色发射器。"
            },
            "sourceCue": "Low Beamcasters article puzzle 4; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "button_and_beam_v3",
      "articlePuzzleNumber": 6,
      "levelSet": "monsters_and_beams",
      "levelSetPosition": 6,
      "candidateThemeGroup": "monsters_and_beams",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-006-source.webp",
        "cue": "Article puzzle 6; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Red light opens every color door.",
        "红光可打开各种颜色的能量门。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 6 selected layout",
          "zh": "Low Beamcasters 文章第 6 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-006.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 6,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-006-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "eef27b8e111615c98a5572691f898369a8bf5bae65488f715102da5750321c26",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-006-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "eef27b8e111615c98a5572691f898369a8bf5bae65488f715102da5750321c26",
            "imageSha256": "d415bd085e0701a78a7a565d2f2d6b89f7c444cca606cbe92d8bee066fcba3a4",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "6",
                "color": "#168bd2",
                "center": {
                  "x": 641,
                  "y": 253
                },
                "rect": [
                  613,
                  225,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "rightmost red cube in the horizontal row",
                  "zh": "横排中最右侧的红色方块"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 6 selected layout; ring marks rightmost red cube in the horizontal row.",
              "zh": "Low Beamcasters 文章第 6 题选定布局；圆环标出横排中最右侧的红色方块。"
            },
            "instruction": {
              "en": "Red light opens every color door.",
              "zh": "红光可打开各种颜色的能量门。"
            },
            "result": {
              "en": "Ring marks rightmost red cube in the horizontal row.",
              "zh": "圆环标出横排中最右侧的红色方块。"
            },
            "sourceCue": "Low Beamcasters article puzzle 6; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "thief_dragger_v2",
      "articlePuzzleNumber": 7,
      "levelSet": "monsters_and_beams",
      "levelSetPosition": 7,
      "candidateThemeGroup": "monsters_and_beams",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-007-source.webp",
        "cue": "Article puzzle 7; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Toggle gates by moving monsters.",
        "让怪物进出触发门的变化。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 7 selected layout",
          "zh": "Low Beamcasters 文章第 7 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-007.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 7,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-007-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "af972124f120e01834c868383da7adf2b8c00c0e9489d7b5d3a23502a8b500be",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-007-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "af972124f120e01834c868383da7adf2b8c00c0e9489d7b5d3a23502a8b500be",
            "imageSha256": "4b4cdfcea21c1ee6be19ae8cad6a0eefc591cda00da71bf8909eed7a4114b25d",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "7",
                "color": "#168bd2",
                "center": {
                  "x": 699,
                  "y": 141
                },
                "rect": [
                  671,
                  113,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "purple crystal on the upper-right ledge",
                  "zh": "右上平台上的紫色水晶"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 7 selected layout; ring marks purple crystal on the upper-right ledge.",
              "zh": "Low Beamcasters 文章第 7 题选定布局；圆环标出右上平台上的紫色水晶。"
            },
            "instruction": {
              "en": "Toggle gates by moving monsters.",
              "zh": "让怪物进出触发门的变化。"
            },
            "result": {
              "en": "Ring marks purple crystal on the upper-right ledge.",
              "zh": "圆环标出右上平台上的紫色水晶。"
            },
            "sourceCue": "Low Beamcasters article puzzle 7; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "goblin_two_rovers_alt",
      "articlePuzzleNumber": 10,
      "levelSet": "monsters_and_beams",
      "levelSetPosition": 10,
      "candidateThemeGroup": "monsters_and_beams",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-010-source.webp",
        "cue": "Article puzzle 10; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Use carts to turn the goblin.",
        "借推车改变哥布林朝向。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 10 selected layout",
          "zh": "Low Beamcasters 文章第 10 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-010.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 10,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-010-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "975dbb115357ea73a4a47f2facdecbf61de936a89cfb12a833e788806dc723ad",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-010-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "975dbb115357ea73a4a47f2facdecbf61de936a89cfb12a833e788806dc723ad",
            "imageSha256": "192259f91edbd3c4d642be002712dd8e3e4d01df0e78bae17e007d0ee80f45d4",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "10",
                "color": "#168bd2",
                "center": {
                  "x": 188,
                  "y": 224
                },
                "rect": [
                  160,
                  196,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "cyan pad on the small left island",
                  "zh": "左侧小岛上的青色垫"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 10 selected layout; ring marks cyan pad on the small left island.",
              "zh": "Low Beamcasters 文章第 10 题选定布局；圆环标出左侧小岛上的青色垫。"
            },
            "instruction": {
              "en": "Use carts to turn the goblin.",
              "zh": "借推车改变哥布林朝向。"
            },
            "result": {
              "en": "Ring marks cyan pad on the small left island.",
              "zh": "圆环标出左侧小岛上的青色垫。"
            },
            "sourceCue": "Low Beamcasters article puzzle 10; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "rotating_cavalry_spaced",
      "articlePuzzleNumber": 12,
      "levelSet": "monsters_and_beams",
      "levelSetPosition": 11,
      "candidateThemeGroup": "monsters_and_beams",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-012-source.webp",
        "cue": "Article puzzle 12; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Turn orange light across the dragon loop.",
        "让橙光横扫龙所在的环形路线。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 12 selected layout",
          "zh": "Low Beamcasters 文章第 12 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-012.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 12,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-012-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "791f1224f52cf8e0c461d5e6810ece17104f431d58abf37e96a0649f440f151e",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-012-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "791f1224f52cf8e0c461d5e6810ece17104f431d58abf37e96a0649f440f151e",
            "imageSha256": "e5ab849ffd4d5ad54cc351392c08394086c6e7ea98f6476b16e004c505cf95d5",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "12",
                "color": "#168bd2",
                "center": {
                  "x": 555,
                  "y": 266
                },
                "rect": [
                  527,
                  238,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "yellow emitter on the main island",
                  "zh": "主岛上的黄色发射器"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 12 selected layout; ring marks yellow emitter on the main island.",
              "zh": "Low Beamcasters 文章第 12 题选定布局；圆环标出主岛上的黄色发射器。"
            },
            "instruction": {
              "en": "Turn orange light across the dragon loop.",
              "zh": "让橙光横扫龙所在的环形路线。"
            },
            "result": {
              "en": "Ring marks yellow emitter on the main island.",
              "zh": "圆环标出主岛上的黄色发射器。"
            },
            "sourceCue": "Low Beamcasters article puzzle 12; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "nowhere_to_smash_combo",
      "articlePuzzleNumber": 14,
      "levelSet": "underworld_mirrors_and_promesst",
      "levelSetPosition": 7,
      "candidateThemeGroup": "underworld_mirrors_and_promesst",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-014-source.webp",
        "cue": "Article puzzle 14; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Blast stones, then clear rubble.",
        "先炸碎石块，再清除碎石。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 14 selected layout",
          "zh": "Low Beamcasters 文章第 14 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-014.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 14,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-014-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "2271247e011196efdb76a8e33c5cfde89e7f984b393fdad597ffbae1e3754560",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-014-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "2271247e011196efdb76a8e33c5cfde89e7f984b393fdad597ffbae1e3754560",
            "imageSha256": "6e7cccb04fcc29d7c1894348a712844a1a1342ec1c05dc72b8765b3a924a9085",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "14",
                "color": "#168bd2",
                "center": {
                  "x": 282,
                  "y": 233
                },
                "rect": [
                  254,
                  205,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "green stone on the large left platform",
                  "zh": "左侧大平台上的绿色石块"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 14 selected layout; ring marks green stone on the large left platform.",
              "zh": "Low Beamcasters 文章第 14 题选定布局；圆环标出左侧大平台上的绿色石块。"
            },
            "instruction": {
              "en": "Blast stones, then clear rubble.",
              "zh": "先炸碎石块，再清除碎石。"
            },
            "result": {
              "en": "Ring marks green stone on the large left platform.",
              "zh": "圆环标出左侧大平台上的绿色石块。"
            },
            "sourceCue": "Low Beamcasters article puzzle 14; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "get_through_alt",
      "articlePuzzleNumber": 15,
      "levelSet": "underworld_mirrors_and_promesst",
      "levelSetPosition": 8,
      "candidateThemeGroup": "underworld_mirrors_and_promesst",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-015-source.webp",
        "cue": "Article puzzle 15; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Use crystal stones from a distance.",
        "远距离使用水晶跳石。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 15 selected layout",
          "zh": "Low Beamcasters 文章第 15 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-015.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 15,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-015-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "d0c38b8b74061abc1e5a475cb4103778d49ec3235f79ff07aa1d8702d8b6db39",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-015-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "d0c38b8b74061abc1e5a475cb4103778d49ec3235f79ff07aa1d8702d8b6db39",
            "imageSha256": "f9ba35fcf4fa1585bb476218981f315d9733b8cfb8f36e59a5553e080397337f",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "15",
                "color": "#168bd2",
                "center": {
                  "x": 302,
                  "y": 393
                },
                "rect": [
                  274,
                  365,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "green stone on the lower-left platform",
                  "zh": "左下平台上的绿色石块"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 15 selected layout; ring marks green stone on the lower-left platform.",
              "zh": "Low Beamcasters 文章第 15 题选定布局；圆环标出左下平台上的绿色石块。"
            },
            "instruction": {
              "en": "Use crystal stones from a distance.",
              "zh": "远距离使用水晶跳石。"
            },
            "result": {
              "en": "Ring marks green stone on the lower-left platform.",
              "zh": "圆环标出左下平台上的绿色石块。"
            },
            "sourceCue": "Low Beamcasters article puzzle 15; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "save_for_later",
      "articlePuzzleNumber": 17,
      "levelSet": "underworld_mirrors_and_promesst",
      "levelSetPosition": 10,
      "candidateThemeGroup": "underworld_mirrors_and_promesst",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-017-source.webp",
        "cue": "Article puzzle 17; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Keep one stone outside the block.",
        "让一块石头留在能量方块外。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 17 selected layout",
          "zh": "Low Beamcasters 文章第 17 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-017.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 17,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-017-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "1b94bb46a761678058ddc3054d1bc8596370e3e66b64070c057595d33fa30cef",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-017-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "1b94bb46a761678058ddc3054d1bc8596370e3e66b64070c057595d33fa30cef",
            "imageSha256": "09e1296cc55b4e79c71cd9a69416a7cb8b6a4a16ccb36a84de27d0986a4a0a6d",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "17",
                "color": "#168bd2",
                "center": {
                  "x": 405,
                  "y": 229
                },
                "rect": [
                  377,
                  201,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "green stone at the left edge of the cluster",
                  "zh": "石块群左侧边缘的绿色石块"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 17 selected layout; ring marks green stone at the left edge of the cluster.",
              "zh": "Low Beamcasters 文章第 17 题选定布局；圆环标出石块群左侧边缘的绿色石块。"
            },
            "instruction": {
              "en": "Keep one stone outside the block.",
              "zh": "让一块石头留在能量方块外。"
            },
            "result": {
              "en": "Ring marks green stone at the left edge of the cluster.",
              "zh": "圆环标出石块群左侧边缘的绿色石块。"
            },
            "sourceCue": "Low Beamcasters article puzzle 17; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "rubble_chain",
      "articlePuzzleNumber": 18,
      "levelSet": "underworld_mirrors_and_promesst",
      "levelSetPosition": 11,
      "candidateThemeGroup": "underworld_mirrors_and_promesst",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-018-source.webp",
        "cue": "Article puzzle 18; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Use lily pad to carry rubble.",
        "用睡莲平台运送碎石。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 18 selected layout",
          "zh": "Low Beamcasters 文章第 18 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-018.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 18,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-018-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "8786a2bf3fdb87f85649c68fad9d024300ee25e11ded2796773a2da2d3745f6a",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-018-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "8786a2bf3fdb87f85649c68fad9d024300ee25e11ded2796773a2da2d3745f6a",
            "imageSha256": "739d52915c93f83b339ee15ea545a782145fa98456c1c9bf68bdd157b016e422",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "18",
                "color": "#168bd2",
                "center": {
                  "x": 403,
                  "y": 190
                },
                "rect": [
                  375,
                  162,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "yellow emitter on the right-hand platform",
                  "zh": "右侧平台上的黄色发射器"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 18 selected layout; ring marks yellow emitter on the right-hand platform.",
              "zh": "Low Beamcasters 文章第 18 题选定布局；圆环标出右侧平台上的黄色发射器。"
            },
            "instruction": {
              "en": "Use lily pad to carry rubble.",
              "zh": "用睡莲平台运送碎石。"
            },
            "result": {
              "en": "Ring marks yellow emitter on the right-hand platform.",
              "zh": "圆环标出右侧平台上的黄色发射器。"
            },
            "sourceCue": "Low Beamcasters article puzzle 18; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "do_not_want",
      "articlePuzzleNumber": 19,
      "levelSet": "underworld_mirrors_and_promesst",
      "levelSetPosition": 12,
      "candidateThemeGroup": "underworld_mirrors_and_promesst",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-019-source.webp",
        "cue": "Article puzzle 19; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Crush the emitter with an energy block.",
        "用能量方块压碎发射器。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 19 selected layout",
          "zh": "Low Beamcasters 文章第 19 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-019.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 19,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-019-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "9edb8e1d8ada9fa89e2fd50368748742ddb867d562cc3e6f04ec08ab337ae431",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-019-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "9edb8e1d8ada9fa89e2fd50368748742ddb867d562cc3e6f04ec08ab337ae431",
            "imageSha256": "929aa7b5f763e20b355f5ee17665132aa37f974689325006a3a13c5db8300929",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "19",
                "color": "#168bd2",
                "center": {
                  "x": 509,
                  "y": 310
                },
                "rect": [
                  481,
                  282,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "yellow cube at the right edge of the main floor",
                  "zh": "主地板右边缘的黄色方块"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 19 selected layout; ring marks yellow cube at the right edge of the main floor.",
              "zh": "Low Beamcasters 文章第 19 题选定布局；圆环标出主地板右边缘的黄色方块。"
            },
            "instruction": {
              "en": "Crush the emitter with an energy block.",
              "zh": "用能量方块压碎发射器。"
            },
            "result": {
              "en": "Ring marks yellow cube at the right edge of the main floor.",
              "zh": "圆环标出主地板右边缘的黄色方块。"
            },
            "sourceCue": "Low Beamcasters article puzzle 19; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "smartbomb_combo_v3",
      "articlePuzzleNumber": 20,
      "levelSet": "underworld_mirrors_and_promesst",
      "levelSetPosition": 13,
      "candidateThemeGroup": "underworld_mirrors_and_promesst",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-020-source.webp",
        "cue": "Article puzzle 20; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Combine yellow and multicolored blasts.",
        "结合黄色与彩色光束轰击。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 20 selected layout",
          "zh": "Low Beamcasters 文章第 20 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-020.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 20,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-020-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "bb2c2fad863d48665800525d92015d3e042c77e5291e0f0424180060a5e4d0bc",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-020-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "bb2c2fad863d48665800525d92015d3e042c77e5291e0f0424180060a5e4d0bc",
            "imageSha256": "a41880a7d811bc72c7b705e10aa54522083c345291d99a28aeacafd134abe7bb",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "20",
                "color": "#168bd2",
                "center": {
                  "x": 434,
                  "y": 327
                },
                "rect": [
                  406,
                  299,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "yellow emitter at the lower edge",
                  "zh": "下方边缘的黄色发射器"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 20 selected layout; ring marks yellow emitter at the lower edge.",
              "zh": "Low Beamcasters 文章第 20 题选定布局；圆环标出下方边缘的黄色发射器。"
            },
            "instruction": {
              "en": "Combine yellow and multicolored blasts.",
              "zh": "结合黄色与彩色光束轰击。"
            },
            "result": {
              "en": "Ring marks yellow emitter at the lower edge.",
              "zh": "圆环标出下方边缘的黄色发射器。"
            },
            "sourceCue": "Low Beamcasters article puzzle 20; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "crystal_rover_rush",
      "articlePuzzleNumber": 21,
      "levelSet": "underworld_heroes_and_promesst",
      "levelSetPosition": 21,
      "candidateThemeGroup": "underworld_heroes_and_promesst",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-021-source.webp",
        "cue": "Article puzzle 21; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Get ahead of the cart on orange.",
        "借橙光赶到推车前方。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 21 selected layout",
          "zh": "Low Beamcasters 文章第 21 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-021.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 21,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-021-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "b05916be6501e53add44fcd83f9c67d06b07fa5e2a2953f54c48b36e5c1879d1",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-021-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "b05916be6501e53add44fcd83f9c67d06b07fa5e2a2953f54c48b36e5c1879d1",
            "imageSha256": "abb3377306f9321a2b89d2d5303b5fd104202b02ca5d40fa7838ece14343a141",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "21",
                "color": "#168bd2",
                "center": {
                  "x": 234,
                  "y": 327
                },
                "rect": [
                  206,
                  299,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "round cart on the left island",
                  "zh": "左侧岛上的圆形推车"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 21 selected layout; ring marks round cart on the left island.",
              "zh": "Low Beamcasters 文章第 21 题选定布局；圆环标出左侧岛上的圆形推车。"
            },
            "instruction": {
              "en": "Get ahead of the cart on orange.",
              "zh": "借橙光赶到推车前方。"
            },
            "result": {
              "en": "Ring marks round cart on the left island.",
              "zh": "圆环标出左侧岛上的圆形推车。"
            },
            "sourceCue": "Low Beamcasters article puzzle 21; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "crystal_rover_bridge",
      "articlePuzzleNumber": 22,
      "levelSet": "underworld_heroes_and_promesst",
      "levelSetPosition": 22,
      "candidateThemeGroup": "underworld_heroes_and_promesst",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-022-source.webp",
        "cue": "Article puzzle 22; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Line up three carts as a bridge.",
        "把三辆推车并排搭成桥。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 22 selected layout",
          "zh": "Low Beamcasters 文章第 22 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-022.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 22,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-022-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "0d361c35840480e180891350c076f015f09bbb1e4320e87714d6c639ed9841c6",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-022-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "0d361c35840480e180891350c076f015f09bbb1e4320e87714d6c639ed9841c6",
            "imageSha256": "16e727839abd4a3cbadd0e71db39c42c4f5baa9326de15e7dd3da575c9feace2",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "22",
                "color": "#168bd2",
                "center": {
                  "x": 224,
                  "y": 227
                },
                "rect": [
                  196,
                  199,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "yellow cube in the left-hand maze",
                  "zh": "左侧迷宫里的黄色方块"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 22 selected layout; ring marks yellow cube in the left-hand maze.",
              "zh": "Low Beamcasters 文章第 22 题选定布局；圆环标出左侧迷宫里的黄色方块。"
            },
            "instruction": {
              "en": "Line up three carts as a bridge.",
              "zh": "把三辆推车并排搭成桥。"
            },
            "result": {
              "en": "Ring marks yellow cube in the left-hand maze.",
              "zh": "圆环标出左侧迷宫里的黄色方块。"
            },
            "sourceCue": "Low Beamcasters article puzzle 22; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "perch_3_rovers",
      "articlePuzzleNumber": 23,
      "levelSet": "underworld_heroes_and_promesst",
      "levelSetPosition": 23,
      "candidateThemeGroup": "underworld_heroes_and_promesst",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-023-source.webp",
        "cue": "Article puzzle 23; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Keep a cart beneath the dragon.",
        "让推车始终位于龙的下方。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 23 selected layout",
          "zh": "Low Beamcasters 文章第 23 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-023.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 23,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-023-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "3f606ab9dea73997da61ea456b15e533afd38afeecc4e915ae7c3f891e075548",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-023-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "3f606ab9dea73997da61ea456b15e533afd38afeecc4e915ae7c3f891e075548",
            "imageSha256": "4c3fa2b68723fee9fa67166f7dfc7ac104c183dc8c4972f6dc9024c678f943f2",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "23",
                "color": "#168bd2",
                "center": {
                  "x": 483,
                  "y": 441
                },
                "rect": [
                  455,
                  413,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "green cube on the small lower island",
                  "zh": "下方小岛上的绿色方块"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 23 selected layout; ring marks green cube on the small lower island.",
              "zh": "Low Beamcasters 文章第 23 题选定布局；圆环标出下方小岛上的绿色方块。"
            },
            "instruction": {
              "en": "Keep a cart beneath the dragon.",
              "zh": "让推车始终位于龙的下方。"
            },
            "result": {
              "en": "Ring marks green cube on the small lower island.",
              "zh": "圆环标出下方小岛上的绿色方块。"
            },
            "sourceCue": "Low Beamcasters article puzzle 23; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "triple_skip",
      "articlePuzzleNumber": 24,
      "levelSet": "underworld_heroes_and_promesst",
      "levelSetPosition": 14,
      "candidateThemeGroup": "underworld_heroes_and_promesst",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-024-source.webp",
        "cue": "Article puzzle 24; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Use multicolored light for longer jumps.",
        "用彩色光束延长跳跃距离。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 24 selected layout",
          "zh": "Low Beamcasters 文章第 24 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-024.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 24,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-024-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "d5ece4d29166a6110322468b3d830d7029b8e70a623ebe01f2df809f859d5fb0",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-024-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "d5ece4d29166a6110322468b3d830d7029b8e70a623ebe01f2df809f859d5fb0",
            "imageSha256": "69b4655ed5a26a1d64f639d692dd04e24cc1535f56af533ee1278cc15783a0f4",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "24",
                "color": "#168bd2",
                "center": {
                  "x": 503,
                  "y": 245
                },
                "rect": [
                  475,
                  217,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "green skipping stone on the central platform",
                  "zh": "中央平台上的绿色跳石"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 24 selected layout; ring marks green skipping stone on the central platform.",
              "zh": "Low Beamcasters 文章第 24 题选定布局；圆环标出中央平台上的绿色跳石。"
            },
            "instruction": {
              "en": "Use multicolored light for longer jumps.",
              "zh": "用彩色光束延长跳跃距离。"
            },
            "result": {
              "en": "Ring marks green skipping stone on the central platform.",
              "zh": "圆环标出中央平台上的绿色跳石。"
            },
            "sourceCue": "Low Beamcasters article puzzle 24; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "quadruple_skip",
      "articlePuzzleNumber": 25,
      "levelSet": "underworld_heroes_and_promesst",
      "levelSetPosition": 15,
      "candidateThemeGroup": "underworld_heroes_and_promesst",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-025-source.webp",
        "cue": "Article puzzle 25; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Use both orange beams to extend jumps.",
        "借两束橙光延长跳跃。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 25 selected layout",
          "zh": "Low Beamcasters 文章第 25 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-025.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 25,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-025-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "883d1dd9bd47563f1653b232ecff5f128fca1fb6fa6511ef9b4718aaf46a23b2",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-025-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "883d1dd9bd47563f1653b232ecff5f128fca1fb6fa6511ef9b4718aaf46a23b2",
            "imageSha256": "7c22484ec327bb1738e36ebae1ff55f855208ba05778c7bce704aaece830b592",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "25",
                "color": "#168bd2",
                "center": {
                  "x": 501,
                  "y": 248
                },
                "rect": [
                  473,
                  220,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "brown skipping stone to the right of the beam",
                  "zh": "光束右侧的棕色跳石"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 25 selected layout; ring marks brown skipping stone to the right of the beam.",
              "zh": "Low Beamcasters 文章第 25 题选定布局；圆环标出光束右侧的棕色跳石。"
            },
            "instruction": {
              "en": "Use both orange beams to extend jumps.",
              "zh": "借两束橙光延长跳跃。"
            },
            "result": {
              "en": "Ring marks brown skipping stone to the right of the beam.",
              "zh": "圆环标出光束右侧的棕色跳石。"
            },
            "sourceCue": "Low Beamcasters article puzzle 25; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "3wc_into_forest_v7",
      "articlePuzzleNumber": 28,
      "levelSet": "underworld_heroes_and_promesst",
      "levelSetPosition": 16,
      "candidateThemeGroup": "underworld_heroes_and_promesst",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-028-source.webp",
        "cue": "Article puzzle 28; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Extend the wall before shoving upward.",
        "先延长墙面，再把跳石向上推。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 28 selected layout",
          "zh": "Low Beamcasters 文章第 28 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-028.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 28,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-028-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "15f3d432cd4917a227f5e6ed66d013862ac2773000611450091327420aa65117",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-028-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "15f3d432cd4917a227f5e6ed66d013862ac2773000611450091327420aa65117",
            "imageSha256": "5a1dc78e180d82054d043cbc58b2c2bf2cf393e6b9d1932c02049dbd2adac027",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "28",
                "color": "#168bd2",
                "center": {
                  "x": 310,
                  "y": 325
                },
                "rect": [
                  282,
                  297,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "large pale-yellow stone beside the lower platform",
                  "zh": "下层平台旁的大块浅黄色石头"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 28 selected layout; ring marks large pale-yellow stone beside the lower platform.",
              "zh": "Low Beamcasters 文章第 28 题选定布局；圆环标出下层平台旁的大块浅黄色石头。"
            },
            "instruction": {
              "en": "Extend the wall before shoving upward.",
              "zh": "先延长墙面，再把跳石向上推。"
            },
            "result": {
              "en": "Ring marks large pale-yellow stone beside the lower platform.",
              "zh": "圆环标出下层平台旁的大块浅黄色石头。"
            },
            "sourceCue": "Low Beamcasters article puzzle 28; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "endpoint_wrap_druid_alt",
      "articlePuzzleNumber": 29,
      "levelSet": "underworld_heroes_and_promesst",
      "levelSetPosition": 11,
      "candidateThemeGroup": "underworld_heroes_and_promesst",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-029-source.webp",
        "cue": "Article puzzle 29; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Use crystals to pave the water gap.",
        "用水晶填出跨越水面的道路。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 29 selected layout",
          "zh": "Low Beamcasters 文章第 29 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-029.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 29,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-029-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "f701018877370edd5e988917f144153048c4788d1c437d259385169fadd68dfe",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-029-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "f701018877370edd5e988917f144153048c4788d1c437d259385169fadd68dfe",
            "imageSha256": "e82e351af929e8aacdf37ebfa90eb47c60fdb6cdf95cd05fd3a45785bf0de776",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "29",
                "color": "#168bd2",
                "center": {
                  "x": 450,
                  "y": 285
                },
                "rect": [
                  422,
                  257,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "magenta emitter on the central island",
                  "zh": "中央小岛上的洋红色发射器"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 29 selected layout; ring marks magenta emitter on the central island.",
              "zh": "Low Beamcasters 文章第 29 题选定布局；圆环标出中央小岛上的洋红色发射器。"
            },
            "instruction": {
              "en": "Use crystals to pave the water gap.",
              "zh": "用水晶填出跨越水面的道路。"
            },
            "result": {
              "en": "Ring marks magenta emitter on the central island.",
              "zh": "圆环标出中央小岛上的洋红色发射器。"
            },
            "sourceCue": "Low Beamcasters article puzzle 29; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "beam_me_up_v3",
      "articlePuzzleNumber": 32,
      "levelSet": "underworld_mirrors_and_promesst",
      "levelSetPosition": 14,
      "candidateThemeGroup": "underworld_mirrors_and_promesst",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-032-source.webp",
        "cue": "Article puzzle 32; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Block the left endpoint before teleporting.",
        "先挡住左侧终点，再进行传送。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 32 selected layout",
          "zh": "Low Beamcasters 文章第 32 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-032.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 32,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-032-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "ba754facd9a8dca4931ccd905d41d84628e26befac117ba21cda159f70b6a6a4",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-032-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "ba754facd9a8dca4931ccd905d41d84628e26befac117ba21cda159f70b6a6a4",
            "imageSha256": "6e6a025e6f5bb84d59a555679d5f340b347c58d2959b1d062e54c3229e00b947",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "32",
                "color": "#168bd2",
                "center": {
                  "x": 600,
                  "y": 310
                },
                "rect": [
                  572,
                  282,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "lime-green energy block on the raised wall",
                  "zh": "抬高墙面上的黄绿色能量方块"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 32 selected layout; ring marks lime-green energy block on the raised wall.",
              "zh": "Low Beamcasters 文章第 32 题选定布局；圆环标出抬高墙面上的黄绿色能量方块。"
            },
            "instruction": {
              "en": "Block the left endpoint before teleporting.",
              "zh": "先挡住左侧终点，再进行传送。"
            },
            "result": {
              "en": "Ring marks lime-green energy block on the raised wall.",
              "zh": "圆环标出抬高墙面上的黄绿色能量方块。"
            },
            "sourceCue": "Low Beamcasters article puzzle 32; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "toggler00",
      "articlePuzzleNumber": 33,
      "levelSet": "underworld_mirrors_and_promesst",
      "levelSetPosition": 15,
      "candidateThemeGroup": "underworld_mirrors_and_promesst",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-033-source.webp",
        "cue": "Article puzzle 33; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Let a crystal bounce between endpoints.",
        "让水晶在两个终点间往返。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 33 selected layout",
          "zh": "Low Beamcasters 文章第 33 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-033.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 33,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-033-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "80842447943404a7febab00a1e45d658c16df370bf660eb57d912367361b2987",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-033-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "80842447943404a7febab00a1e45d658c16df370bf660eb57d912367361b2987",
            "imageSha256": "004cbd753f8d8fa623e430d73487132fe267b57b088192d296093f53bd287642",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "33",
                "color": "#168bd2",
                "center": {
                  "x": 330,
                  "y": 55
                },
                "rect": [
                  302,
                  27,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "the upper-left magenta emitter",
                  "zh": "左上方的洋红色发射器"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 33 selected layout; ring marks the upper-left magenta emitter.",
              "zh": "Low Beamcasters 文章第 33 题选定布局；圆环标出左上方的洋红色发射器。"
            },
            "instruction": {
              "en": "Let a crystal bounce between endpoints.",
              "zh": "让水晶在两个终点间往返。"
            },
            "result": {
              "en": "Ring marks the upper-left magenta emitter.",
              "zh": "圆环标出左上方的洋红色发射器。"
            },
            "sourceCue": "Low Beamcasters article puzzle 33; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "two_half_togglers",
      "articlePuzzleNumber": 34,
      "levelSet": "underworld_mirrors_and_promesst",
      "levelSetPosition": 16,
      "candidateThemeGroup": "underworld_mirrors_and_promesst",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-034-source.webp",
        "cue": "Article puzzle 34; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Ride the bouncing crystal to upper platforms.",
        "借往返水晶到达上层平台。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 34 selected layout",
          "zh": "Low Beamcasters 文章第 34 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-034.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 34,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-034-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "62a95d873899618412d831fa72c9ecee0c6b0fa1c5b03964fb295dd0ed4748a6",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-034-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "62a95d873899618412d831fa72c9ecee0c6b0fa1c5b03964fb295dd0ed4748a6",
            "imageSha256": "21bf98c8dc180bade6827ad20975269583597965603d2f1d63698f3ba38c2d3a",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "34",
                "color": "#168bd2",
                "center": {
                  "x": 800,
                  "y": 140
                },
                "rect": [
                  772,
                  112,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "yellow cube on the upper-right platform",
                  "zh": "右上平台上的黄色立方体"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 34 selected layout; ring marks yellow cube on the upper-right platform.",
              "zh": "Low Beamcasters 文章第 34 题选定布局；圆环标出右上平台上的黄色立方体。"
            },
            "instruction": {
              "en": "Ride the bouncing crystal to upper platforms.",
              "zh": "借往返水晶到达上层平台。"
            },
            "result": {
              "en": "Ring marks yellow cube on the upper-right platform.",
              "zh": "圆环标出右上平台上的黄色立方体。"
            },
            "sourceCue": "Low Beamcasters article puzzle 34; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "purple_heart",
      "articlePuzzleNumber": 35,
      "levelSet": "underworld_mirrors_and_promesst",
      "levelSetPosition": 17,
      "candidateThemeGroup": "underworld_mirrors_and_promesst",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-035-source.webp",
        "cue": "Article puzzle 35; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Use the Explorer as a bouncing endpoint.",
        "让探索者充当往返传送终点。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 35 selected layout",
          "zh": "Low Beamcasters 文章第 35 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-035.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 35,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-035-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "1ff5b16cc04c0493cbb38a00c80e3cd9d81fed1bf99c0be7cb4414d7a6007d7a",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-035-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "1ff5b16cc04c0493cbb38a00c80e3cd9d81fed1bf99c0be7cb4414d7a6007d7a",
            "imageSha256": "419fdb880a7f469827e595adf96486c2f02761e83774a3b7b9fab9326c69952d",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "35",
                "color": "#168bd2",
                "center": {
                  "x": 435,
                  "y": 452
                },
                "rect": [
                  407,
                  424,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "left green energy block at the lower edge",
                  "zh": "下方边缘左侧的绿色能量方块"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 35 selected layout; ring marks left green energy block at the lower edge.",
              "zh": "Low Beamcasters 文章第 35 题选定布局；圆环标出下方边缘左侧的绿色能量方块。"
            },
            "instruction": {
              "en": "Use the Explorer as a bouncing endpoint.",
              "zh": "让探索者充当往返传送终点。"
            },
            "result": {
              "en": "Ring marks left green energy block at the lower edge.",
              "zh": "圆环标出下方边缘左侧的绿色能量方块。"
            },
            "sourceCue": "Low Beamcasters article puzzle 35; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "gem_trap",
      "articlePuzzleNumber": 36,
      "levelSet": "gems",
      "levelSetPosition": 1,
      "candidateThemeGroup": "gems",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-036-source.webp",
        "cue": "Article puzzle 36; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Leave the gems holding required buttons.",
        "保留压住必要按钮的宝石。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 36 selected layout",
          "zh": "Low Beamcasters 文章第 36 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-036.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 36,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-036-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "5c4bb314e2ea783fdad895642b24ad90fc5cdbbd8b3e28a572b923472fef7705",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-036-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "5c4bb314e2ea783fdad895642b24ad90fc5cdbbd8b3e28a572b923472fef7705",
            "imageSha256": "c3b5da053005ef6b1efcfc3f7abf47a9c3eb76de8c5f644eb39aa2b3422629ec",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "36",
                "color": "#168bd2",
                "center": {
                  "x": 365,
                  "y": 255
                },
                "rect": [
                  337,
                  227,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "yellow outlined block beside the gem grid",
                  "zh": "宝石网格旁的黄色方框"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 36 selected layout; ring marks yellow outlined block beside the gem grid.",
              "zh": "Low Beamcasters 文章第 36 题选定布局；圆环标出宝石网格旁的黄色方框。"
            },
            "instruction": {
              "en": "Leave the gems holding required buttons.",
              "zh": "保留压住必要按钮的宝石。"
            },
            "result": {
              "en": "Ring marks yellow outlined block beside the gem grid.",
              "zh": "圆环标出宝石网格旁的黄色方框。"
            },
            "sourceCue": "Low Beamcasters article puzzle 36; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "gem_trap2",
      "articlePuzzleNumber": 37,
      "levelSet": "gems",
      "levelSetPosition": 2,
      "candidateThemeGroup": "gems",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-037-source.webp",
        "cue": "Article puzzle 37; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Keep the Priestess near the Explorer.",
        "让女祭司留在探索者附近。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 37 selected layout",
          "zh": "Low Beamcasters 文章第 37 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-037.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 37,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-037-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "7b51661a6d294c4ca74ac70822acdfce6bfce5d642217a64dc073f08f108cffb",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-037-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "7b51661a6d294c4ca74ac70822acdfce6bfce5d642217a64dc073f08f108cffb",
            "imageSha256": "b9aeddd3fb12467107ed871d2e0c082ec3c7cad27928f1754a78938ee38a2aa1",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "37",
                "color": "#168bd2",
                "center": {
                  "x": 242,
                  "y": 322
                },
                "rect": [
                  214,
                  294,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "upper magenta pad on the left island",
                  "zh": "左侧小岛上方的洋红色垫"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 37 selected layout; ring marks upper magenta pad on the left island.",
              "zh": "Low Beamcasters 文章第 37 题选定布局；圆环标出左侧小岛上方的洋红色垫。"
            },
            "instruction": {
              "en": "Keep the Priestess near the Explorer.",
              "zh": "让女祭司留在探索者附近。"
            },
            "result": {
              "en": "Ring marks upper magenta pad on the left island.",
              "zh": "圆环标出左侧小岛上方的洋红色垫。"
            },
            "sourceCue": "Low Beamcasters article puzzle 37; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "negative_space",
      "articlePuzzleNumber": 38,
      "levelSet": "gems",
      "levelSetPosition": 3,
      "candidateThemeGroup": "gems",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-038-source.webp",
        "cue": "Article puzzle 38; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Carry Explorer left, then arrange gems.",
        "先把探索者带到左侧，再排列宝石。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 38 selected layout",
          "zh": "Low Beamcasters 文章第 38 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-038.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 38,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-038-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "d46f22630a2a8389e402298af58e094661bcc71b28a973710eff36e323035eac",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-038-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "d46f22630a2a8389e402298af58e094661bcc71b28a973710eff36e323035eac",
            "imageSha256": "9c816802bf755b5bcf1b81430efde3565b70a13b7cf03d45b5c42649b9b1054b",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "38",
                "color": "#168bd2",
                "center": {
                  "x": 265,
                  "y": 209
                },
                "rect": [
                  237,
                  181,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "upper magenta pad on the left island",
                  "zh": "左侧小岛上方的洋红色垫"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 38 selected layout; ring marks upper magenta pad on the left island.",
              "zh": "Low Beamcasters 文章第 38 题选定布局；圆环标出左侧小岛上方的洋红色垫。"
            },
            "instruction": {
              "en": "Carry Explorer left, then arrange gems.",
              "zh": "先把探索者带到左侧，再排列宝石。"
            },
            "result": {
              "en": "Ring marks upper magenta pad on the left island.",
              "zh": "圆环标出左侧小岛上方的洋红色垫。"
            },
            "sourceCue": "Low Beamcasters article puzzle 38; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "numberlink_alt",
      "articlePuzzleNumber": 39,
      "levelSet": "gems",
      "levelSetPosition": 4,
      "candidateThemeGroup": "gems",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-039-source.webp",
        "cue": "Article puzzle 39; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Keep the three paths from crossing.",
        "让三条路线彼此不交叉。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 39 selected layout",
          "zh": "Low Beamcasters 文章第 39 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-039.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 39,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-039-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "8df0fbdb6d3a2dcf203156dd1ab589b527579c733daeedf5e17e966d907c285c",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-039-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "8df0fbdb6d3a2dcf203156dd1ab589b527579c733daeedf5e17e966d907c285c",
            "imageSha256": "36d209d50e217f421e10777d8e76c5788934d02a9cac13fec558e27b83970ffc",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "39",
                "color": "#168bd2",
                "center": {
                  "x": 575,
                  "y": 95
                },
                "rect": [
                  547,
                  67,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "magenta pad above the walkway",
                  "zh": "步道上方的洋红色垫"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 39 selected layout; ring marks magenta pad above the walkway.",
              "zh": "Low Beamcasters 文章第 39 题选定布局；圆环标出步道上方的洋红色垫。"
            },
            "instruction": {
              "en": "Keep the three paths from crossing.",
              "zh": "让三条路线彼此不交叉。"
            },
            "result": {
              "en": "Ring marks magenta pad above the walkway.",
              "zh": "圆环标出步道上方的洋红色垫。"
            },
            "sourceCue": "Low Beamcasters article puzzle 39; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "breaking_bread",
      "articlePuzzleNumber": 40,
      "levelSet": "gems",
      "levelSetPosition": 5,
      "candidateThemeGroup": "gems",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-040-source.webp",
        "cue": "Article puzzle 40; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Reflect a gem-carrying Explorer.",
        "反射携带宝石的探索者。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 40 selected layout",
          "zh": "Low Beamcasters 文章第 40 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-040.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 40,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-040-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "e0f69ad8252017373361f23b4fba284c5ffe13580e2f34d62c9bc9b74c1bcb78",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-040-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "e0f69ad8252017373361f23b4fba284c5ffe13580e2f34d62c9bc9b74c1bcb78",
            "imageSha256": "db440e7803717e64e269ae715464b1f4c2aebd1e7f58326e8235d1c421982f02",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "40",
                "color": "#168bd2",
                "center": {
                  "x": 390,
                  "y": 236
                },
                "rect": [
                  362,
                  208,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "upper angled mirror on the central platform",
                  "zh": "中央平台上的上方倾斜镜子"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 40 selected layout; ring marks upper angled mirror on the central platform.",
              "zh": "Low Beamcasters 文章第 40 题选定布局；圆环标出中央平台上的上方倾斜镜子。"
            },
            "instruction": {
              "en": "Reflect a gem-carrying Explorer.",
              "zh": "反射携带宝石的探索者。"
            },
            "result": {
              "en": "Ring marks upper angled mirror on the central platform.",
              "zh": "圆环标出中央平台上的上方倾斜镜子。"
            },
            "sourceCue": "Low Beamcasters article puzzle 40; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "zachtronics_identity",
      "articlePuzzleNumber": 41,
      "levelSet": "zachtronics",
      "levelSetPosition": 1,
      "candidateThemeGroup": "zachtronics",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-041-source.webp",
        "cue": "Article puzzle 41; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Match the top-row input to the output.",
        "按输出需要设置顶排输入。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 41 selected layout",
          "zh": "Low Beamcasters 文章第 41 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-041.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 41,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-041-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "013ec9e26cd726a39e121de16a02e6f36b189eb1f56abcf7717e01f287719223",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-041-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "013ec9e26cd726a39e121de16a02e6f36b189eb1f56abcf7717e01f287719223",
            "imageSha256": "0e5d96c487c057aaa2fed891e48bd6084f85425b68f66d55392f10268cbed9d6",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "41",
                "color": "#168bd2",
                "center": {
                  "x": 290,
                  "y": 420
                },
                "rect": [
                  262,
                  392,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "green outlined block at the lower-left edge",
                  "zh": "左下边缘的绿色方框"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 41 selected layout; ring marks green outlined block at the lower-left edge.",
              "zh": "Low Beamcasters 文章第 41 题选定布局；圆环标出左下边缘的绿色方框。"
            },
            "instruction": {
              "en": "Match the top-row input to the output.",
              "zh": "按输出需要设置顶排输入。"
            },
            "result": {
              "en": "Ring marks green outlined block at the lower-left edge.",
              "zh": "圆环标出左下边缘的绿色方框。"
            },
            "sourceCue": "Low Beamcasters article puzzle 41; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "zachtronics_or",
      "articlePuzzleNumber": 42,
      "levelSet": "zachtronics",
      "levelSetPosition": 2,
      "candidateThemeGroup": "zachtronics",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-042-source.webp",
        "cue": "Article puzzle 42; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Use any input to light the output.",
        "任一输入都能点亮输出。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 42 selected layout",
          "zh": "Low Beamcasters 文章第 42 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-042.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 42,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-042-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "7a277886efef937761c3dd8483415a935dcec5ed617440c3f05a23e21e6e3806",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-042-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "7a277886efef937761c3dd8483415a935dcec5ed617440c3f05a23e21e6e3806",
            "imageSha256": "d332aa773bbfbc259d7c583076ee35a89007193674f5b80ccddf083bb4b0ae27",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "42",
                "color": "#168bd2",
                "center": {
                  "x": 650,
                  "y": 215
                },
                "rect": [
                  622,
                  187,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "lower cyan result block on the right",
                  "zh": "右侧下方的青色结果方块"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 42 selected layout; ring marks lower cyan result block on the right.",
              "zh": "Low Beamcasters 文章第 42 题选定布局；圆环标出右侧下方的青色结果方块。"
            },
            "instruction": {
              "en": "Use any input to light the output.",
              "zh": "任一输入都能点亮输出。"
            },
            "result": {
              "en": "Ring marks lower cyan result block on the right.",
              "zh": "圆环标出右侧下方的青色结果方块。"
            },
            "sourceCue": "Low Beamcasters article puzzle 42; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "zachtronics",
      "articlePuzzleNumber": 44,
      "levelSet": "zachtronics",
      "levelSetPosition": 4,
      "candidateThemeGroup": "zachtronics",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-044-source.webp",
        "cue": "Article puzzle 44; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Set the crystal-and-stone binary inputs.",
        "用水晶与石块设置二进制输入。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 44 selected layout",
          "zh": "Low Beamcasters 文章第 44 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-044.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 44,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-044-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "17ec24eb3df4ae9f1d637e1077c314a331cc7b6d0422fb092e43ab49632f51e4",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-044-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "17ec24eb3df4ae9f1d637e1077c314a331cc7b6d0422fb092e43ab49632f51e4",
            "imageSha256": "f7baae70d63abd7908f475c03e1cf15422bdabdb9d9f7c80497754c4829e853b",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "44",
                "color": "#168bd2",
                "center": {
                  "x": 696,
                  "y": 215
                },
                "rect": [
                  668,
                  187,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "cyan block beside the beams",
                  "zh": "光束旁的青色方块"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 44 selected layout; ring marks cyan block beside the beams.",
              "zh": "Low Beamcasters 文章第 44 题选定布局；圆环标出光束旁的青色方块。"
            },
            "instruction": {
              "en": "Set the crystal-and-stone binary inputs.",
              "zh": "用水晶与石块设置二进制输入。"
            },
            "result": {
              "en": "Ring marks cyan block beside the beams.",
              "zh": "圆环标出光束旁的青色方块。"
            },
            "sourceCue": "Low Beamcasters article puzzle 44; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "half_journey_vh",
      "articlePuzzleNumber": 45,
      "levelSet": "underworld_mirrors_and_promesst",
      "levelSetPosition": 18,
      "candidateThemeGroup": "underworld_mirrors_and_promesst",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-045-source.webp",
        "cue": "Article puzzle 45; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Route a long purple beam across.",
        "把紫色光束引到远端。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 45 selected layout",
          "zh": "Low Beamcasters 文章第 45 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-045.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 45,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-045-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "3f6a8b6bccc84fa7fbccf0794c426fdee9809346cfd3707ff7590e092b2f6b38",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-045-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "3f6a8b6bccc84fa7fbccf0794c426fdee9809346cfd3707ff7590e092b2f6b38",
            "imageSha256": "501a216ee4d508a21ac224029500c70f3cd482e2ce42a12bd2407a0906042eab",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "45",
                "color": "#168bd2",
                "center": {
                  "x": 183,
                  "y": 305
                },
                "rect": [
                  155,
                  277,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "pale mirror on the small platform",
                  "zh": "小平台上的浅色镜子"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 45 selected layout; ring marks pale mirror on the small platform.",
              "zh": "Low Beamcasters 文章第 45 题选定布局；圆环标出小平台上的浅色镜子。"
            },
            "instruction": {
              "en": "Route a long purple beam across.",
              "zh": "把紫色光束引到远端。"
            },
            "result": {
              "en": "Ring marks pale mirror on the small platform.",
              "zh": "圆环标出小平台上的浅色镜子。"
            },
            "sourceCue": "Low Beamcasters article puzzle 45; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "orange_gem_instant",
      "articlePuzzleNumber": 46,
      "levelSet": "gems",
      "levelSetPosition": 6,
      "candidateThemeGroup": "gems",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-046-source.webp",
        "cue": "Article puzzle 46; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Use reflected white light to activate holders.",
        "反射白光来启动宝石支架。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 46 selected layout",
          "zh": "Low Beamcasters 文章第 46 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-046.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 46,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-046-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "6923a070bdb1765a40db8a309e1e2797f54b78ba869eb04c4618cdf413badd1c",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-046-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "6923a070bdb1765a40db8a309e1e2797f54b78ba869eb04c4618cdf413badd1c",
            "imageSha256": "9f44afb6bed4bc88e79124a7b3dc1a6c8c32a251fd40c5f3b3f477e18d8207bd",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "46",
                "color": "#168bd2",
                "center": {
                  "x": 478,
                  "y": 165
                },
                "rect": [
                  450,
                  137,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "tilted mirror on the green platform",
                  "zh": "绿色平台上的倾斜镜子"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 46 selected layout; ring marks tilted mirror on the green platform.",
              "zh": "Low Beamcasters 文章第 46 题选定布局；圆环标出绿色平台上的倾斜镜子。"
            },
            "instruction": {
              "en": "Use reflected white light to activate holders.",
              "zh": "反射白光来启动宝石支架。"
            },
            "result": {
              "en": "Ring marks tilted mirror on the green platform.",
              "zh": "圆环标出绿色平台上的倾斜镜子。"
            },
            "sourceCue": "Low Beamcasters article puzzle 46; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "river_rotate_beams_gr",
      "articlePuzzleNumber": 48,
      "levelSet": "underworld_skipping_and_promesst",
      "levelSetPosition": 15,
      "candidateThemeGroup": "underworld_skipping_and_promesst",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-048-source.webp",
        "cue": "Article puzzle 48; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Account for clockwise turns in the current.",
        "考虑水流带来的顺时针转向。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 48 selected layout",
          "zh": "Low Beamcasters 文章第 48 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-048.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 48,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-048-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "8e45c084c63c24fd41547d19154e25dfb8ec2fa8a750b7f8dea45e7507f85783",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-048-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "8e45c084c63c24fd41547d19154e25dfb8ec2fa8a750b7f8dea45e7507f85783",
            "imageSha256": "f7e1692ba757c9589e1362b294e41564d22d8b139fe1f5d70e9fddda9d2eeb27",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "48",
                "color": "#168bd2",
                "center": {
                  "x": 575,
                  "y": 240
                },
                "rect": [
                  547,
                  212,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "the green emitter above the current",
                  "zh": "水流上方的绿色发射器"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 48 selected layout; ring marks the green emitter above the current.",
              "zh": "Low Beamcasters 文章第 48 题选定布局；圆环标出水流上方的绿色发射器。"
            },
            "instruction": {
              "en": "Account for clockwise turns in the current.",
              "zh": "考虑水流带来的顺时针转向。"
            },
            "result": {
              "en": "Ring marks the green emitter above the current.",
              "zh": "圆环标出水流上方的绿色发射器。"
            },
            "sourceCue": "Low Beamcasters article puzzle 48; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "kick",
      "articlePuzzleNumber": 49,
      "levelSet": "underworld_skipping_and_promesst",
      "levelSetPosition": 16,
      "candidateThemeGroup": "underworld_skipping_and_promesst",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-049-source.webp",
        "cue": "Article puzzle 49; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Keep both emitters off the current.",
        "让两个发射器都避开水流。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 49 selected layout",
          "zh": "Low Beamcasters 文章第 49 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-049.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 49,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-049-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "fe4fadceb2ec40e25790b04d1b66cfdc62759eb34c93863ecbc98ae47ec41da2",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-049-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "fe4fadceb2ec40e25790b04d1b66cfdc62759eb34c93863ecbc98ae47ec41da2",
            "imageSha256": "eade65f63d3f2c6baa685394db21e38d14a72f5720fcdddc49eeb4412e3af7c8",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "49",
                "color": "#168bd2",
                "center": {
                  "x": 414,
                  "y": 293
                },
                "rect": [
                  386,
                  265,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "green emitter at the bottom of the channel",
                  "zh": "通道底部的绿色发射器"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 49 selected layout; ring marks green emitter at the bottom of the channel.",
              "zh": "Low Beamcasters 文章第 49 题选定布局；圆环标出通道底部的绿色发射器。"
            },
            "instruction": {
              "en": "Keep both emitters off the current.",
              "zh": "让两个发射器都避开水流。"
            },
            "result": {
              "en": "Ring marks green emitter at the bottom of the channel.",
              "zh": "圆环标出通道底部的绿色发射器。"
            },
            "sourceCue": "Low Beamcasters article puzzle 49; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "lily_two_cyan",
      "articlePuzzleNumber": 50,
      "levelSet": "underworld_skipping_and_promesst",
      "levelSetPosition": 17,
      "candidateThemeGroup": "underworld_skipping_and_promesst",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-050-source.webp",
        "cue": "Article puzzle 50; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Time both lily pads fifteen tiles apart.",
        "把两座睡莲平台间隔十五格并把握时机。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 50 selected layout",
          "zh": "Low Beamcasters 文章第 50 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-050.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 50,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-050-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "8d582ec8dd769f52829a00d9b996bb7d22c0bec8b3236267b4f093e104c635c7",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-050-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "8d582ec8dd769f52829a00d9b996bb7d22c0bec8b3236267b4f093e104c635c7",
            "imageSha256": "6f112a6439aeec912aea8e0455bc6dc68fb10ad3d5fba021cee7e034fd6b7769",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                },
                {
                  "x": 800,
                  "y": 505,
                  "width": 160,
                  "height": 35,
                  "purpose": "capture-toolbar",
                  "reason": "Capture toolbar covers empty water margin outside the board."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              },
              {
                "x": 800,
                "y": 505,
                "width": 160,
                "height": 35,
                "purpose": "capture-toolbar",
                "reason": "Capture toolbar covers empty water margin outside the board."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "50",
                "color": "#168bd2",
                "center": {
                  "x": 446,
                  "y": 230
                },
                "rect": [
                  418,
                  202,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "cyan emitter on the upper-left side",
                  "zh": "左上侧的青色发射器"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 50 selected layout; ring marks cyan emitter on the upper-left side.",
              "zh": "Low Beamcasters 文章第 50 题选定布局；圆环标出左上侧的青色发射器。"
            },
            "instruction": {
              "en": "Time both lily pads fifteen tiles apart.",
              "zh": "把两座睡莲平台间隔十五格并把握时机。"
            },
            "result": {
              "en": "Ring marks cyan emitter on the upper-left side.",
              "zh": "圆环标出左上侧的青色发射器。"
            },
            "sourceCue": "Low Beamcasters article puzzle 50; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "skip_purple_drop_alt",
      "articlePuzzleNumber": 51,
      "levelSet": "underworld_skipping_and_promesst",
      "levelSetPosition": 2,
      "candidateThemeGroup": "underworld_skipping_and_promesst",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-051-source.webp",
        "cue": "Article puzzle 51; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Keep the stone hovering at the endpoint.",
        "让跳石持续悬停在传送终点。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 51 selected layout",
          "zh": "Low Beamcasters 文章第 51 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-051.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 51,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-051-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "3a439c5c9557d971f4d16be3d7a8899716f8822bdb713bc01b8c7b284c914573",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-051-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "3a439c5c9557d971f4d16be3d7a8899716f8822bdb713bc01b8c7b284c914573",
            "imageSha256": "457dddeee861ea2b71fc45ce389d7a535a0431cc54e9521ba8136c3b8c86766c",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "51",
                "color": "#168bd2",
                "center": {
                  "x": 463,
                  "y": 130
                },
                "rect": [
                  435,
                  102,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "left magenta emitter at the top",
                  "zh": "顶部左侧的洋红色发射器"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 51 selected layout; ring marks left magenta emitter at the top.",
              "zh": "Low Beamcasters 文章第 51 题选定布局；圆环标出顶部左侧的洋红色发射器。"
            },
            "instruction": {
              "en": "Keep the stone hovering at the endpoint.",
              "zh": "让跳石持续悬停在传送终点。"
            },
            "result": {
              "en": "Ring marks left magenta emitter at the top.",
              "zh": "圆环标出顶部左侧的洋红色发射器。"
            },
            "sourceCue": "Low Beamcasters article puzzle 51; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "endpoint_holder3",
      "articlePuzzleNumber": 52,
      "levelSet": "underworld_skipping_and_promesst",
      "levelSetPosition": 3,
      "candidateThemeGroup": "underworld_skipping_and_promesst",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-052-source.webp",
        "cue": "Article puzzle 52; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Use the gem and hovering stone as blockers.",
        "用宝石和悬停跳石挡住龙。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 52 selected layout",
          "zh": "Low Beamcasters 文章第 52 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-052.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 52,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-052-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "805bd228f148115ea48149ca588bbf8eb9ad94ff250000145f65f1ad659bc760",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-052-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "805bd228f148115ea48149ca588bbf8eb9ad94ff250000145f65f1ad659bc760",
            "imageSha256": "10de5cbaef08bc32e0b2ea6f52858be50bde3087750f67a0d36813eb0caafece",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "52",
                "color": "#168bd2",
                "center": {
                  "x": 185,
                  "y": 285
                },
                "rect": [
                  157,
                  257,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "magenta emitter on the left island",
                  "zh": "左侧小岛上的洋红色发射器"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 52 selected layout; ring marks magenta emitter on the left island.",
              "zh": "Low Beamcasters 文章第 52 题选定布局；圆环标出左侧小岛上的洋红色发射器。"
            },
            "instruction": {
              "en": "Use the gem and hovering stone as blockers.",
              "zh": "用宝石和悬停跳石挡住龙。"
            },
            "result": {
              "en": "Ring marks magenta emitter on the left island.",
              "zh": "圆环标出左侧小岛上的洋红色发射器。"
            },
            "sourceCue": "Low Beamcasters article puzzle 52; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "endpoint_holder4",
      "articlePuzzleNumber": 53,
      "levelSet": "underworld_skipping_and_promesst",
      "levelSetPosition": 4,
      "candidateThemeGroup": "underworld_skipping_and_promesst",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-053-source.webp",
        "cue": "Article puzzle 53; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Make the purple activator its own endpoint.",
        "让紫色启动器成为传送终点。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 53 selected layout",
          "zh": "Low Beamcasters 文章第 53 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-053.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 53,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-053-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "231f26398c50b0d1a4515d14c717b0fccae3859006709af308d5888086594720",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-053-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "231f26398c50b0d1a4515d14c717b0fccae3859006709af308d5888086594720",
            "imageSha256": "07bbacda34bb8fc77cebd409b76f2c0aae88a2b609ed02f14f1c870ac20a8cdf",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "53",
                "color": "#168bd2",
                "center": {
                  "x": 180,
                  "y": 320
                },
                "rect": [
                  152,
                  292,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "the purple endpoint holder",
                  "zh": "紫色终点支架"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 53 selected layout; ring marks the purple endpoint holder.",
              "zh": "Low Beamcasters 文章第 53 题选定布局；圆环标出紫色终点支架。"
            },
            "instruction": {
              "en": "Make the purple activator its own endpoint.",
              "zh": "让紫色启动器成为传送终点。"
            },
            "result": {
              "en": "Ring marks the purple endpoint holder.",
              "zh": "圆环标出紫色终点支架。"
            },
            "sourceCue": "Low Beamcasters article puzzle 53; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "mobile_cover_2",
      "articlePuzzleNumber": 54,
      "levelSet": "underworld_skipping_and_promesst",
      "levelSetPosition": 5,
      "candidateThemeGroup": "underworld_skipping_and_promesst",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-054-source.webp",
        "cue": "Article puzzle 54; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Hover two stones to block four dragons.",
        "让两块跳石悬停以挡住四条龙。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 54 selected layout",
          "zh": "Low Beamcasters 文章第 54 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-054.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 54,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-054-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "5fed53013bcfd90a0975cec7e5ee61503dbf5cfb892f2fbeb04fedad4f0f63ff",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-054-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "5fed53013bcfd90a0975cec7e5ee61503dbf5cfb892f2fbeb04fedad4f0f63ff",
            "imageSha256": "6efe31919411d13eee8562c5ae9f6c0af00a6eb3f704b9c6f53040e21df2b839",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "54",
                "color": "#168bd2",
                "center": {
                  "x": 720,
                  "y": 380
                },
                "rect": [
                  692,
                  352,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "the green exit pad on the right island",
                  "zh": "右侧小岛上的绿色出口垫"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 54 selected layout; ring marks the green exit pad on the right island.",
              "zh": "Low Beamcasters 文章第 54 题选定布局；圆环标出右侧小岛上的绿色出口垫。"
            },
            "instruction": {
              "en": "Hover two stones to block four dragons.",
              "zh": "让两块跳石悬停以挡住四条龙。"
            },
            "result": {
              "en": "Ring marks the green exit pad on the right island.",
              "zh": "圆环标出右侧小岛上的绿色出口垫。"
            },
            "sourceCue": "Low Beamcasters article puzzle 54; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "hover_corner_3",
      "articlePuzzleNumber": 55,
      "levelSet": "underworld_skipping_and_promesst",
      "levelSetPosition": 6,
      "candidateThemeGroup": "underworld_skipping_and_promesst",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-055-source.webp",
        "cue": "Article puzzle 55; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Use hovering stone to turn the pad.",
        "借悬停跳石转动睡莲平台。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 55 selected layout",
          "zh": "Low Beamcasters 文章第 55 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-055.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 55,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-055-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "5fed993a63271e7aec338fa113e6985974ef191bb5b4463f10d81e6f88e1dc50",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-055-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "5fed993a63271e7aec338fa113e6985974ef191bb5b4463f10d81e6f88e1dc50",
            "imageSha256": "657ef1c60d1e3bf4e3d740aaf083e9b01637f1b921ed73897c6bd28dab49edf9",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "55",
                "color": "#168bd2",
                "center": {
                  "x": 693,
                  "y": 247
                },
                "rect": [
                  665,
                  219,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "green lily pad at the upper-right edge",
                  "zh": "右上边缘的绿色睡莲垫"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 55 selected layout; ring marks green lily pad at the upper-right edge.",
              "zh": "Low Beamcasters 文章第 55 题选定布局；圆环标出右上边缘的绿色睡莲垫。"
            },
            "instruction": {
              "en": "Use hovering stone to turn the pad.",
              "zh": "借悬停跳石转动睡莲平台。"
            },
            "result": {
              "en": "Ring marks green lily pad at the upper-right edge.",
              "zh": "圆环标出右上边缘的绿色睡莲垫。"
            },
            "sourceCue": "Low Beamcasters article puzzle 55; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "hover_corner_4",
      "articlePuzzleNumber": 56,
      "levelSet": "underworld_skipping_and_promesst",
      "levelSetPosition": 7,
      "candidateThemeGroup": "underworld_skipping_and_promesst",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-056-source.webp",
        "cue": "Article puzzle 56; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Nudge the lily pad with hovering stone.",
        "用悬停跳石轻推睡莲平台。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 56 selected layout",
          "zh": "Low Beamcasters 文章第 56 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-056.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 56,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-056-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "00d0599114e87ccf4cdc50798068c64cec98cfcb9a56b89a598ee240cce0d253",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-056-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "00d0599114e87ccf4cdc50798068c64cec98cfcb9a56b89a598ee240cce0d253",
            "imageSha256": "94b2251853bfd1c8aff0346325280f3d93edac2a32f9698ccd8b6cd7afbe3558",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "56",
                "color": "#168bd2",
                "center": {
                  "x": 195,
                  "y": 155
                },
                "rect": [
                  167,
                  127,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "cyan pad on the small left platform",
                  "zh": "左侧小平台上的青色垫"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 56 selected layout; ring marks cyan pad on the small left platform.",
              "zh": "Low Beamcasters 文章第 56 题选定布局；圆环标出左侧小平台上的青色垫。"
            },
            "instruction": {
              "en": "Nudge the lily pad with hovering stone.",
              "zh": "用悬停跳石轻推睡莲平台。"
            },
            "result": {
              "en": "Ring marks cyan pad on the small left platform.",
              "zh": "圆环标出左侧小平台上的青色垫。"
            },
            "sourceCue": "Low Beamcasters article puzzle 56; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "retvrn0",
      "articlePuzzleNumber": 57,
      "levelSet": "underworld_skipping_and_promesst",
      "levelSetPosition": 10,
      "candidateThemeGroup": "underworld_skipping_and_promesst",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-057-source.webp",
        "cue": "Article puzzle 57; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Create a new endpoint on the shore.",
        "在岸边创造新的传送终点。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 57 selected layout",
          "zh": "Low Beamcasters 文章第 57 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-057.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 57,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-057-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "196a7d6f6216db1cebf37d1b7ba9d1e1eef2ffb70d7b1138d571c535677892ef",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-057-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "196a7d6f6216db1cebf37d1b7ba9d1e1eef2ffb70d7b1138d571c535677892ef",
            "imageSha256": "ba0a561d3d96ac2f128e7ad739f01be1fe90c3c8ee06afae6365834737273dfb",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "57",
                "color": "#168bd2",
                "center": {
                  "x": 513,
                  "y": 323
                },
                "rect": [
                  485,
                  295,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "green lily pad between the islands",
                  "zh": "岛屿之间的绿色睡莲垫"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 57 selected layout; ring marks green lily pad between the islands.",
              "zh": "Low Beamcasters 文章第 57 题选定布局；圆环标出岛屿之间的绿色睡莲垫。"
            },
            "instruction": {
              "en": "Create a new endpoint on the shore.",
              "zh": "在岸边创造新的传送终点。"
            },
            "result": {
              "en": "Ring marks green lily pad between the islands.",
              "zh": "圆环标出岛屿之间的绿色睡莲垫。"
            },
            "sourceCue": "Low Beamcasters article puzzle 57; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "tricky_endpoint",
      "articlePuzzleNumber": 58,
      "levelSet": "underworld_skipping_and_promesst",
      "levelSetPosition": 8,
      "candidateThemeGroup": "underworld_skipping_and_promesst",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-058-source.webp",
        "cue": "Article puzzle 58; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Use the plain stone as endpoint.",
        "用普通石块作为传送终点。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 58 selected layout",
          "zh": "Low Beamcasters 文章第 58 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-058.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 58,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-058-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "1f6edb261858ecc18a8934bb4f20f56b037d99058b278bd53735372b7b230a6e",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-058-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "1f6edb261858ecc18a8934bb4f20f56b037d99058b278bd53735372b7b230a6e",
            "imageSha256": "f913570c07168e45cd55b094dcea7564863343e2d2ccc2d57e9443ede57cf796",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "58",
                "color": "#168bd2",
                "center": {
                  "x": 845,
                  "y": 252
                },
                "rect": [
                  817,
                  224,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "blue gem on the right platform",
                  "zh": "右侧平台上的蓝色宝石"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 58 selected layout; ring marks blue gem on the right platform.",
              "zh": "Low Beamcasters 文章第 58 题选定布局；圆环标出右侧平台上的蓝色宝石。"
            },
            "instruction": {
              "en": "Use the plain stone as endpoint.",
              "zh": "用普通石块作为传送终点。"
            },
            "result": {
              "en": "Ring marks blue gem on the right platform.",
              "zh": "圆环标出右侧平台上的蓝色宝石。"
            },
            "sourceCue": "Low Beamcasters article puzzle 58; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "drop_operation_v3",
      "articlePuzzleNumber": 59,
      "levelSet": "underworld_skipping_and_promesst",
      "levelSetPosition": 9,
      "candidateThemeGroup": "underworld_skipping_and_promesst",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-059-source.webp",
        "cue": "Article puzzle 59; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Use one extra stone as blocker.",
        "多出的一块石头用来挡光束。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 59 selected layout",
          "zh": "Low Beamcasters 文章第 59 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-059.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 59,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-059-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "c624bfe419681c1dc8dd3a2af87c17f8fdc0b50915646552725878692c19fac5",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-059-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "c624bfe419681c1dc8dd3a2af87c17f8fdc0b50915646552725878692c19fac5",
            "imageSha256": "e40a8af576aee2ba0d30c546f8e7a537bfac3617f1d8d71a9ba56decf2983771",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "59",
                "color": "#168bd2",
                "center": {
                  "x": 145,
                  "y": 215
                },
                "rect": [
                  117,
                  187,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "upper-left golden skipping stone",
                  "zh": "左上方的金色跳石"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 59 selected layout; ring marks upper-left golden skipping stone.",
              "zh": "Low Beamcasters 文章第 59 题选定布局；圆环标出左上方的金色跳石。"
            },
            "instruction": {
              "en": "Use one extra stone as blocker.",
              "zh": "多出的一块石头用来挡光束。"
            },
            "result": {
              "en": "Ring marks upper-left golden skipping stone.",
              "zh": "圆环标出左上方的金色跳石。"
            },
            "sourceCue": "Low Beamcasters article puzzle 59; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "juggalos",
      "articlePuzzleNumber": 60,
      "levelSet": "underworld_skipping_and_promesst",
      "levelSetPosition": 12,
      "candidateThemeGroup": "underworld_skipping_and_promesst",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-060-source.webp",
        "cue": "Article puzzle 60; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Hold yellow and blue buttons together.",
        "同时压住黄色和蓝色按钮。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 60 selected layout",
          "zh": "Low Beamcasters 文章第 60 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-060.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 60,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-060-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "57396ad2d046b91d7204d338758f2129f89a9bd055fbc7c95ee02f2d69ee4958",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-060-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "57396ad2d046b91d7204d338758f2129f89a9bd055fbc7c95ee02f2d69ee4958",
            "imageSha256": "116c04bd945c38938d0acc048f1515695c999b9bc043f989235a36a54e849fee",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "60",
                "color": "#168bd2",
                "center": {
                  "x": 522,
                  "y": 171
                },
                "rect": [
                  494,
                  143,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "yellow block beside the upper blue block",
                  "zh": "上方蓝色方块旁的黄色方块"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 60 selected layout; ring marks yellow block beside the upper blue block.",
              "zh": "Low Beamcasters 文章第 60 题选定布局；圆环标出上方蓝色方块旁的黄色方块。"
            },
            "instruction": {
              "en": "Hold yellow and blue buttons together.",
              "zh": "同时压住黄色和蓝色按钮。"
            },
            "result": {
              "en": "Ring marks yellow block beside the upper blue block.",
              "zh": "圆环标出上方蓝色方块旁的黄色方块。"
            },
            "sourceCue": "Low Beamcasters article puzzle 60; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "defender",
      "articlePuzzleNumber": 61,
      "levelSet": "underworld_skipping_and_promesst",
      "levelSetPosition": 11,
      "candidateThemeGroup": "underworld_skipping_and_promesst",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-061-source.webp",
        "cue": "Article puzzle 61; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Spend spare stones to buy time.",
        "利用多余跳石争取时间。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 61 selected layout",
          "zh": "Low Beamcasters 文章第 61 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-061.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 61,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-061-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "a41188b20e8a1f1e6fef464a720e9cded1a29a8aab84ce1a006e09c1acb3044c",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-061-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "a41188b20e8a1f1e6fef464a720e9cded1a29a8aab84ce1a006e09c1acb3044c",
            "imageSha256": "0db0db41c8c3de9c1215cdb07b475a6bd2e20dfdf1e598105fc2fcd9d2fec2f7",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "61",
                "color": "#168bd2",
                "center": {
                  "x": 410,
                  "y": 380
                },
                "rect": [
                  382,
                  352,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "cyan pad beside the lower wall",
                  "zh": "下方墙壁旁的青色垫"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 61 selected layout; ring marks cyan pad beside the lower wall.",
              "zh": "Low Beamcasters 文章第 61 题选定布局；圆环标出下方墙壁旁的青色垫。"
            },
            "instruction": {
              "en": "Spend spare stones to buy time.",
              "zh": "利用多余跳石争取时间。"
            },
            "result": {
              "en": "Ring marks cyan pad beside the lower wall.",
              "zh": "圆环标出下方墙壁旁的青色垫。"
            },
            "sourceCue": "Low Beamcasters article puzzle 61; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "skybridge",
      "articlePuzzleNumber": 62,
      "levelSet": "lily_highway_stones_and_promesst",
      "levelSetPosition": 6,
      "candidateThemeGroup": "lily_highway_stones_and_promesst",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-062-source.webp",
        "cue": "Article puzzle 62; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Build a bridge from skimming stones.",
        "用掠水跳石搭成桥。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 62 selected layout",
          "zh": "Low Beamcasters 文章第 62 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-062.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 62,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-062-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "420e1a89c7baef5b884c317a88d1707630dbc0915398caa35d779d8c46ef41c2",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-062-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "420e1a89c7baef5b884c317a88d1707630dbc0915398caa35d779d8c46ef41c2",
            "imageSha256": "b44f0d431436d93116e8ec80e041c75377ab659fb2e080085d7217051892c912",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "62",
                "color": "#168bd2",
                "center": {
                  "x": 555,
                  "y": 285
                },
                "rect": [
                  527,
                  257,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "framed pit on the narrow pier",
                  "zh": "窄栈桥上的方框坑"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 62 selected layout; ring marks framed pit on the narrow pier.",
              "zh": "Low Beamcasters 文章第 62 题选定布局；圆环标出窄栈桥上的方框坑。"
            },
            "instruction": {
              "en": "Build a bridge from skimming stones.",
              "zh": "用掠水跳石搭成桥。"
            },
            "result": {
              "en": "Ring marks framed pit on the narrow pier.",
              "zh": "圆环标出窄栈桥上的方框坑。"
            },
            "sourceCue": "Low Beamcasters article puzzle 62; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "ortho",
      "articlePuzzleNumber": 63,
      "levelSet": "lily_highway_stones_and_promesst",
      "levelSetPosition": 7,
      "candidateThemeGroup": "lily_highway_stones_and_promesst",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-063-source.webp",
        "cue": "Article puzzle 63; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Build a two-by-two skimming platform.",
        "搭出二乘二的掠水平台。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 63 selected layout",
          "zh": "Low Beamcasters 文章第 63 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-063.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 63,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-063-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "ef457020ece120fa7cea58eb0466392b9a9624452c8d7c897f61ee28bd7486bf",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-063-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "ef457020ece120fa7cea58eb0466392b9a9624452c8d7c897f61ee28bd7486bf",
            "imageSha256": "5a691ede4dc85451155cd681ce04e53bec270d949dca0c3d3783e8f0f7e4301c",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "63",
                "color": "#168bd2",
                "center": {
                  "x": 205,
                  "y": 340
                },
                "rect": [
                  177,
                  312,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "large green stone on the left island",
                  "zh": "左侧小岛上的大块绿色石头"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 63 selected layout; ring marks large green stone on the left island.",
              "zh": "Low Beamcasters 文章第 63 题选定布局；圆环标出左侧小岛上的大块绿色石头。"
            },
            "instruction": {
              "en": "Build a two-by-two skimming platform.",
              "zh": "搭出二乘二的掠水平台。"
            },
            "result": {
              "en": "Ring marks large green stone on the left island.",
              "zh": "圆环标出左侧小岛上的大块绿色石头。"
            },
            "sourceCue": "Low Beamcasters article puzzle 63; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "ortho2",
      "articlePuzzleNumber": 64,
      "levelSet": "lily_highway_stones_and_promesst",
      "levelSetPosition": 8,
      "candidateThemeGroup": "lily_highway_stones_and_promesst",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-064-source.webp",
        "cue": "Article puzzle 64; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Use the co-prime world dimensions.",
        "利用两个互质的世界尺寸。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 64 selected layout",
          "zh": "Low Beamcasters 文章第 64 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-064.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 64,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-064-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "f07484fcb528b4f928213b626d00edf37c2ce91164ef94811069933b9940a167",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-064-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "f07484fcb528b4f928213b626d00edf37c2ce91164ef94811069933b9940a167",
            "imageSha256": "eeacc07f623c6ad2154ece7a86937153da65c92a5b7d46ae96d6e067ea128f65",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "64",
                "color": "#168bd2",
                "center": {
                  "x": 570,
                  "y": 402
                },
                "rect": [
                  542,
                  374,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "yellow pad on the orange platform",
                  "zh": "橙色平台上的黄色垫"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 64 selected layout; ring marks yellow pad on the orange platform.",
              "zh": "Low Beamcasters 文章第 64 题选定布局；圆环标出橙色平台上的黄色垫。"
            },
            "instruction": {
              "en": "Use the co-prime world dimensions.",
              "zh": "利用两个互质的世界尺寸。"
            },
            "result": {
              "en": "Ring marks yellow pad on the orange platform.",
              "zh": "圆环标出橙色平台上的黄色垫。"
            },
            "sourceCue": "Low Beamcasters article puzzle 64; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "zap_bridge",
      "articlePuzzleNumber": 65,
      "levelSet": "lily_highway_stones_and_promesst",
      "levelSetPosition": 3,
      "candidateThemeGroup": "lily_highway_stones_and_promesst",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-065-source.webp",
        "cue": "Article puzzle 65; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Build a short bridge for Explorer.",
        "为探索者搭一座短桥。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 65 selected layout",
          "zh": "Low Beamcasters 文章第 65 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-065.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 65,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-065-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "6a298abb232cbe9a412620ab54c39d887946b053943778b16463230f506ede3c",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-065-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "6a298abb232cbe9a412620ab54c39d887946b053943778b16463230f506ede3c",
            "imageSha256": "2de7943dd2e53a96c2c1a9d3ec542ffa2c8d250a7338ba07e3539c62466a74c5",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "65",
                "color": "#168bd2",
                "center": {
                  "x": 448,
                  "y": 220
                },
                "rect": [
                  420,
                  192,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "green skipping stone on the pink island",
                  "zh": "粉色小岛上的绿色掠水石"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 65 selected layout; ring marks green skipping stone on the pink island.",
              "zh": "Low Beamcasters 文章第 65 题选定布局；圆环标出粉色小岛上的绿色掠水石。"
            },
            "instruction": {
              "en": "Build a short bridge for Explorer.",
              "zh": "为探索者搭一座短桥。"
            },
            "result": {
              "en": "Ring marks green skipping stone on the pink island.",
              "zh": "圆环标出粉色小岛上的绿色掠水石。"
            },
            "sourceCue": "Low Beamcasters article puzzle 65; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "zap_bridge_perp",
      "articlePuzzleNumber": 66,
      "levelSet": "lily_highway_stones_and_promesst",
      "levelSetPosition": 4,
      "candidateThemeGroup": "lily_highway_stones_and_promesst",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-066-source.webp",
        "cue": "Article puzzle 66; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Cross on the Sailor’s head.",
        "让探索者从水手头顶通过。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 66 selected layout",
          "zh": "Low Beamcasters 文章第 66 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-066.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 66,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-066-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "fb3117a1e4068d801ed262ec16433efeff32dcb468b0b0f87d7028d0eacf5d6e",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-066-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "fb3117a1e4068d801ed262ec16433efeff32dcb468b0b0f87d7028d0eacf5d6e",
            "imageSha256": "82b7741c49ae8b382d6785668865a69058cbc41263b44377e20a8e751dceb47b",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "66",
                "color": "#168bd2",
                "center": {
                  "x": 300,
                  "y": 358
                },
                "rect": [
                  272,
                  330,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "yellow pad on the lower platform",
                  "zh": "下层平台上的黄色垫"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 66 selected layout; ring marks yellow pad on the lower platform.",
              "zh": "Low Beamcasters 文章第 66 题选定布局；圆环标出下层平台上的黄色垫。"
            },
            "instruction": {
              "en": "Cross on the Sailor’s head.",
              "zh": "让探索者从水手头顶通过。"
            },
            "result": {
              "en": "Ring marks yellow pad on the lower platform.",
              "zh": "圆环标出下层平台上的黄色垫。"
            },
            "sourceCue": "Low Beamcasters article puzzle 66; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "frontier",
      "articlePuzzleNumber": 67,
      "levelSet": "lily_highway_stones_and_promesst",
      "levelSetPosition": 5,
      "candidateThemeGroup": "lily_highway_stones_and_promesst",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-067-source.webp",
        "cue": "Article puzzle 67; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Keep four skimming stones in step.",
        "让四块掠水跳石保持同步。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 67 selected layout",
          "zh": "Low Beamcasters 文章第 67 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-067.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 67,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-067-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "00bea95964d3e82b69224b176f37864c8eee1ff5f31a5a016759a6bed983c123",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-067-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "00bea95964d3e82b69224b176f37864c8eee1ff5f31a5a016759a6bed983c123",
            "imageSha256": "6b01499a4ef507da1b8e87c9e50ad74001631f0068a40ecfb789ef1f016936a3",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "67",
                "color": "#168bd2",
                "center": {
                  "x": 560,
                  "y": 190
                },
                "rect": [
                  532,
                  162,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "green skipping stone on the fortress island",
                  "zh": "堡垒小岛上的绿色掠水石"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 67 selected layout; ring marks green skipping stone on the fortress island.",
              "zh": "Low Beamcasters 文章第 67 题选定布局；圆环标出堡垒小岛上的绿色掠水石。"
            },
            "instruction": {
              "en": "Keep four skimming stones in step.",
              "zh": "让四块掠水跳石保持同步。"
            },
            "result": {
              "en": "Ring marks green skipping stone on the fortress island.",
              "zh": "圆环标出堡垒小岛上的绿色掠水石。"
            },
            "sourceCue": "Low Beamcasters article puzzle 67; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "smash_midskip_simpler4",
      "articlePuzzleNumber": 69,
      "levelSet": "underworld_skipping_and_promesst",
      "levelSetPosition": 13,
      "candidateThemeGroup": "underworld_skipping_and_promesst",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-069-source.webp",
        "cue": "Article puzzle 69; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Launch the pad, then break the stone.",
        "先启动睡莲平台，再击碎跳石。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 69 selected layout",
          "zh": "Low Beamcasters 文章第 69 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-069.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 69,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-069-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "91c683901275bf23597ed0ac8d0bd011981c337edbcb2aaf7295135c603f1994",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-069-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "91c683901275bf23597ed0ac8d0bd011981c337edbcb2aaf7295135c603f1994",
            "imageSha256": "24f7aeeef56743ab4f4cccb932b7e65fff71088a1d9df391a676a3466d439abc",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "69",
                "color": "#168bd2",
                "center": {
                  "x": 415,
                  "y": 417
                },
                "rect": [
                  387,
                  389,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "yellow emitter at the lower edge",
                  "zh": "下方边缘的黄色发射器"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 69 selected layout; ring marks yellow emitter at the lower edge.",
              "zh": "Low Beamcasters 文章第 69 题选定布局；圆环标出下方边缘的黄色发射器。"
            },
            "instruction": {
              "en": "Launch the pad, then break the stone.",
              "zh": "先启动睡莲平台，再击碎跳石。"
            },
            "result": {
              "en": "Ring marks yellow emitter at the lower edge.",
              "zh": "圆环标出下方边缘的黄色发射器。"
            },
            "sourceCue": "Low Beamcasters article puzzle 69; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "bon_voyage",
      "articlePuzzleNumber": 70,
      "levelSet": "underworld_skipping_and_promesst",
      "levelSetPosition": 1,
      "candidateThemeGroup": "underworld_skipping_and_promesst",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-070-source.webp",
        "cue": "Article puzzle 70; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Let the lily pad interrupt the orange beam.",
        "让睡莲平台挡住橙色光束。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 70 selected layout",
          "zh": "Low Beamcasters 文章第 70 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-070.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 70,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-070-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "44019584d4e782da816d8996b51cf5e60eb5afdf112a85864fb443101865d563",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-070-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "44019584d4e782da816d8996b51cf5e60eb5afdf112a85864fb443101865d563",
            "imageSha256": "0970017d617046c337d3a403880130f17a95da572b76663dba2ce8f3023841c4",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "70",
                "color": "#168bd2",
                "center": {
                  "x": 490,
                  "y": 150
                },
                "rect": [
                  462,
                  122,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "yellow emitter at the upper-left turn",
                  "zh": "左上拐角处的黄色发射器"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 70 selected layout; ring marks yellow emitter at the upper-left turn.",
              "zh": "Low Beamcasters 文章第 70 题选定布局；圆环标出左上拐角处的黄色发射器。"
            },
            "instruction": {
              "en": "Let the lily pad interrupt the orange beam.",
              "zh": "让睡莲平台挡住橙色光束。"
            },
            "result": {
              "en": "Ring marks yellow emitter at the upper-left turn.",
              "zh": "圆环标出左上拐角处的黄色发射器。"
            },
            "sourceCue": "Low Beamcasters article puzzle 70; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "stone_rescue_v3",
      "articlePuzzleNumber": 72,
      "levelSet": "lily_highway_heroes_and_stones",
      "levelSetPosition": 1,
      "candidateThemeGroup": "lily_highway_heroes_and_stones",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-072-source.webp",
        "cue": "Article puzzle 72; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Work with the room’s wraparound.",
        "利用房间的四向环绕。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 72 selected layout",
          "zh": "Low Beamcasters 文章第 72 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-072.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 72,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-072-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "62bd5cc4a15119407acf765273fb0138662f054cc1b8c295d41ebaacb3235f20",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-072-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "62bd5cc4a15119407acf765273fb0138662f054cc1b8c295d41ebaacb3235f20",
            "imageSha256": "56609685c48f56a66c5e6cf81022e59d6b6964a1bc95f7cacf6d19771c39044c",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "72",
                "color": "#168bd2",
                "center": {
                  "x": 390,
                  "y": 220
                },
                "rect": [
                  362,
                  192,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "blue stone on the central island",
                  "zh": "中央小岛上的蓝色石头"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 72 selected layout; ring marks blue stone on the central island.",
              "zh": "Low Beamcasters 文章第 72 题选定布局；圆环标出中央小岛上的蓝色石头。"
            },
            "instruction": {
              "en": "Work with the room’s wraparound.",
              "zh": "利用房间的四向环绕。"
            },
            "result": {
              "en": "Ring marks blue stone on the central island.",
              "zh": "圆环标出中央小岛上的蓝色石头。"
            },
            "sourceCue": "Low Beamcasters article puzzle 72; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "easy_reset_small",
      "articlePuzzleNumber": 75,
      "levelSet": "spawners",
      "levelSetPosition": 1,
      "candidateThemeGroup": "spawners",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-075-source.webp",
        "cue": "Article puzzle 75; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Use the Queen’s local reset point.",
        "使用女王的局部重置点。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 75 selected layout",
          "zh": "Low Beamcasters 文章第 75 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-075.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 75,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-075-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "377c61405d1e27a130404b6b6e6e317afca45f2fc3d3c51df77b6a40bddab503",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-075-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "377c61405d1e27a130404b6b6e6e317afca45f2fc3d3c51df77b6a40bddab503",
            "imageSha256": "b2faea2921e212b92cf219d3eb3cb663d6ad17cb5b5bc3d1f781cbca3eb15758",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "75",
                "color": "#168bd2",
                "center": {
                  "x": 590,
                  "y": 250
                },
                "rect": [
                  562,
                  222,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "yellow energy block between the walls",
                  "zh": "两面墙之间的黄色能量方块"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 75 selected layout; ring marks yellow energy block between the walls.",
              "zh": "Low Beamcasters 文章第 75 题选定布局；圆环标出两面墙之间的黄色能量方块。"
            },
            "instruction": {
              "en": "Use the Queen’s local reset point.",
              "zh": "使用女王的局部重置点。"
            },
            "result": {
              "en": "Ring marks yellow energy block between the walls.",
              "zh": "圆环标出两面墙之间的黄色能量方块。"
            },
            "sourceCue": "Low Beamcasters article puzzle 75; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "wrong_reset",
      "articlePuzzleNumber": 77,
      "levelSet": "spawners",
      "levelSetPosition": 3,
      "candidateThemeGroup": "spawners",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-077-source.webp",
        "cue": "Article puzzle 77; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Reset a platform stone, not the beam.",
        "重置平台石块，而非光束。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 77 selected layout",
          "zh": "Low Beamcasters 文章第 77 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-077.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 77,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-077-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "172ace44a3f0278c1f4c20ca22db6d6e51168508ccb2bc20ad20b8c52c26b527",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-077-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "172ace44a3f0278c1f4c20ca22db6d6e51168508ccb2bc20ad20b8c52c26b527",
            "imageSha256": "f7fe839e47eb0a53f92bffe0886ec54d9e661499eb5e5c5829ca039cf74003a9",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "77",
                "color": "#168bd2",
                "center": {
                  "x": 424,
                  "y": 212
                },
                "rect": [
                  396,
                  184,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "yellow stone between the two beams",
                  "zh": "两束光之间的黄色石块"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 77 selected layout; ring marks yellow stone between the two beams.",
              "zh": "Low Beamcasters 文章第 77 题选定布局；圆环标出两束光之间的黄色石块。"
            },
            "instruction": {
              "en": "Reset a platform stone, not the beam.",
              "zh": "重置平台石块，而非光束。"
            },
            "result": {
              "en": "Ring marks yellow stone between the two beams.",
              "zh": "圆环标出两束光之间的黄色石块。"
            },
            "sourceCue": "Low Beamcasters article puzzle 77; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "recycling",
      "articlePuzzleNumber": 78,
      "levelSet": "spawners",
      "levelSetPosition": 4,
      "candidateThemeGroup": "spawners",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-078-source.webp",
        "cue": "Article puzzle 78; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Guide the lily pad into the slot.",
        "把睡莲平台引入凹槽。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 78 selected layout",
          "zh": "Low Beamcasters 文章第 78 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-078.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 78,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-078-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "fdd60b2cb4f568b56945dfa8bbfbf59aa22e5bf2a8f5b02bf2e55204cbaba6a1",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-078-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "fdd60b2cb4f568b56945dfa8bbfbf59aa22e5bf2a8f5b02bf2e55204cbaba6a1",
            "imageSha256": "a70f574ac61c999844db91bd92ed34ed2369e43119a9bfebf5efaeab4513ba86",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "78",
                "color": "#168bd2",
                "center": {
                  "x": 658,
                  "y": 235
                },
                "rect": [
                  630,
                  207,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "green lily pad in the outlined loop",
                  "zh": "轮廓水道内的绿色睡莲垫"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 78 selected layout; ring marks green lily pad in the outlined loop.",
              "zh": "Low Beamcasters 文章第 78 题选定布局；圆环标出轮廓水道内的绿色睡莲垫。"
            },
            "instruction": {
              "en": "Guide the lily pad into the slot.",
              "zh": "把睡莲平台引入凹槽。"
            },
            "result": {
              "en": "Ring marks green lily pad in the outlined loop.",
              "zh": "圆环标出轮廓水道内的绿色睡莲垫。"
            },
            "sourceCue": "Low Beamcasters article puzzle 78; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "falling_button",
      "articlePuzzleNumber": 79,
      "levelSet": "spawners",
      "levelSetPosition": 5,
      "candidateThemeGroup": "spawners",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-079-source.webp",
        "cue": "Article puzzle 79; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Catch the dropped button on a stone.",
        "用跳石接住落下的按钮。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 79 selected layout",
          "zh": "Low Beamcasters 文章第 79 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-079.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 79,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-079-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "0213b6ee0899eda12bfb0a27563f24f73d7d74e0e35720e19ef0a015a786490c",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-079-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "0213b6ee0899eda12bfb0a27563f24f73d7d74e0e35720e19ef0a015a786490c",
            "imageSha256": "9628c81ff7d787c1f02fe83a9a7aebc38970054ad9e5f98787b0dba2e92e6497",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "79",
                "color": "#168bd2",
                "center": {
                  "x": 555,
                  "y": 267
                },
                "rect": [
                  527,
                  239,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "small blue button on the lower platform",
                  "zh": "下层平台上的小蓝色按钮"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 79 selected layout; ring marks small blue button on the lower platform.",
              "zh": "Low Beamcasters 文章第 79 题选定布局；圆环标出下层平台上的小蓝色按钮。"
            },
            "instruction": {
              "en": "Catch the dropped button on a stone.",
              "zh": "用跳石接住落下的按钮。"
            },
            "result": {
              "en": "Ring marks small blue button on the lower platform.",
              "zh": "圆环标出下层平台上的小蓝色按钮。"
            },
            "sourceCue": "Low Beamcasters article puzzle 79; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "treadmill",
      "articlePuzzleNumber": 80,
      "levelSet": "spawners",
      "levelSetPosition": 6,
      "candidateThemeGroup": "spawners",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-080-source.webp",
        "cue": "Article puzzle 80; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Use cart before stacking stones.",
        "先用推车，再堆叠石块。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 80 selected layout",
          "zh": "Low Beamcasters 文章第 80 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-080.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 80,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-080-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "1794942180c158dee27b88703b688c5b5b9601371a2b2ab6032890d868761ce2",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-080-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "1794942180c158dee27b88703b688c5b5b9601371a2b2ab6032890d868761ce2",
            "imageSha256": "7fcc6f208a95da0528c1575b4ab7daf119075085104c6780621ff2a26219cf74",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "80",
                "color": "#168bd2",
                "center": {
                  "x": 312,
                  "y": 380
                },
                "rect": [
                  284,
                  352,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "cart at the lower edge of the left platform",
                  "zh": "左侧平台下缘的推车"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 80 selected layout; ring marks cart at the lower edge of the left platform.",
              "zh": "Low Beamcasters 文章第 80 题选定布局；圆环标出左侧平台下缘的推车。"
            },
            "instruction": {
              "en": "Use cart before stacking stones.",
              "zh": "先用推车，再堆叠石块。"
            },
            "result": {
              "en": "Ring marks cart at the lower edge of the left platform.",
              "zh": "圆环标出左侧平台下缘的推车。"
            },
            "sourceCue": "Low Beamcasters article puzzle 80; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "monster_spawn",
      "articlePuzzleNumber": 81,
      "levelSet": "spawners",
      "levelSetPosition": 7,
      "candidateThemeGroup": "spawners",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-081-source.webp",
        "cue": "Article puzzle 81; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Reset each goblin separately.",
        "分别重置每只哥布林。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 81 selected layout",
          "zh": "Low Beamcasters 文章第 81 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-081.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 81,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-081-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "48aa63b1a091b98dee9fd4fce8b20753e4a9f1711face4d870323030bad24eac",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-081-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "48aa63b1a091b98dee9fd4fce8b20753e4a9f1711face4d870323030bad24eac",
            "imageSha256": "ba9fa115f1c6faed23077333d0eb77124743e9beef8bed6af87658054d72d2dc",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "81",
                "color": "#168bd2",
                "center": {
                  "x": 532,
                  "y": 337
                },
                "rect": [
                  504,
                  309,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "mirror on the right side of the room",
                  "zh": "房间右侧的镜子"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 81 selected layout; ring marks mirror on the right side of the room.",
              "zh": "Low Beamcasters 文章第 81 题选定布局；圆环标出房间右侧的镜子。"
            },
            "instruction": {
              "en": "Reset each goblin separately.",
              "zh": "分别重置每只哥布林。"
            },
            "result": {
              "en": "Ring marks mirror on the right side of the room.",
              "zh": "圆环标出房间右侧的镜子。"
            },
            "sourceCue": "Low Beamcasters article puzzle 81; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "fall_reset_v2",
      "articlePuzzleNumber": 82,
      "levelSet": "spawners",
      "levelSetPosition": 8,
      "candidateThemeGroup": "spawners",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-082-source.webp",
        "cue": "Article puzzle 82; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Raise the dragon to cross the pit.",
        "抬高巨龙以跨越深坑。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 82 selected layout",
          "zh": "Low Beamcasters 文章第 82 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-082.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 82,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-082-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "9e37872accd8e175c3a41b2ed10545a9a1c0984cf00bbe7c0c1190f8550c7353",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-082-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "9e37872accd8e175c3a41b2ed10545a9a1c0984cf00bbe7c0c1190f8550c7353",
            "imageSha256": "5be4faecb275fc79a059de996db6e3d6918ee6a972ba264659ad11ed66b67bd2",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "82",
                "color": "#168bd2",
                "center": {
                  "x": 584,
                  "y": 65
                },
                "rect": [
                  556,
                  37,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "yellow pad on the raised walkway",
                  "zh": "抬高步道上的黄色垫"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 82 selected layout; ring marks yellow pad on the raised walkway.",
              "zh": "Low Beamcasters 文章第 82 题选定布局；圆环标出抬高步道上的黄色垫。"
            },
            "instruction": {
              "en": "Raise the dragon to cross the pit.",
              "zh": "抬高巨龙以跨越深坑。"
            },
            "result": {
              "en": "Ring marks yellow pad on the raised walkway.",
              "zh": "圆环标出抬高步道上的黄色垫。"
            },
            "sourceCue": "Low Beamcasters article puzzle 82; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "reset_trio",
      "articlePuzzleNumber": 83,
      "levelSet": "spawners",
      "levelSetPosition": 9,
      "candidateThemeGroup": "spawners",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-083-source.webp",
        "cue": "Article puzzle 83; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Block the emitter’s reset spot first.",
        "先占住发射器的重置位置。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 83 selected layout",
          "zh": "Low Beamcasters 文章第 83 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-083.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 83,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-083-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "f63d2aac631ead20a4b41623d43c5f9df24caa8792cd3d31f32c3b46c58864af",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-083-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "f63d2aac631ead20a4b41623d43c5f9df24caa8792cd3d31f32c3b46c58864af",
            "imageSha256": "c31d07350a2b8cafb33411c0efa30fcabc0424fe8aeb4d46fed30b765eb78840",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "83",
                "color": "#168bd2",
                "center": {
                  "x": 724,
                  "y": 130
                },
                "rect": [
                  696,
                  102,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "yellow pad on the small island",
                  "zh": "小岛上的黄色垫"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 83 selected layout; ring marks yellow pad on the small island.",
              "zh": "Low Beamcasters 文章第 83 题选定布局；圆环标出小岛上的黄色垫。"
            },
            "instruction": {
              "en": "Block the emitter’s reset spot first.",
              "zh": "先占住发射器的重置位置。"
            },
            "result": {
              "en": "Ring marks yellow pad on the small island.",
              "zh": "圆环标出小岛上的黄色垫。"
            },
            "sourceCue": "Low Beamcasters article puzzle 83; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "orange_water_button_vslow",
      "articlePuzzleNumber": 86,
      "levelSet": "orange_beam_highway_stones_and_promesst",
      "levelSetPosition": 2,
      "candidateThemeGroup": "orange_beam_highway_stones_and_promesst",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-086-source.webp",
        "cue": "Article puzzle 86; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Use a four-tile jump to block the stone.",
        "用四格跳跃赶到跳石前方拦截。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 86 selected layout",
          "zh": "Low Beamcasters 文章第 86 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-086.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 86,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-086-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "5d3d34155095fa29d0758957d5f16ad8a43050482a664e911c0f9f997079255d",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-086-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "5d3d34155095fa29d0758957d5f16ad8a43050482a664e911c0f9f997079255d",
            "imageSha256": "1a86dd2e0899f0a50bbc5647601445e975a8eeca2b8cd1423943c7bcf47d5573",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "86",
                "color": "#168bd2",
                "center": {
                  "x": 173,
                  "y": 111
                },
                "rect": [
                  145,
                  83,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "yellow cube at the upper-left bend",
                  "zh": "左上拐角的黄色方块"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 86 selected layout; ring marks yellow cube at the upper-left bend.",
              "zh": "Low Beamcasters 文章第 86 题选定布局；圆环标出左上拐角的黄色方块。"
            },
            "instruction": {
              "en": "Use a four-tile jump to block the stone.",
              "zh": "用四格跳跃赶到跳石前方拦截。"
            },
            "result": {
              "en": "Ring marks yellow cube at the upper-left bend.",
              "zh": "圆环标出左上拐角的黄色方块。"
            },
            "sourceCue": "Low Beamcasters article puzzle 86; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "orange_water_button_vdouble_v2",
      "articlePuzzleNumber": 87,
      "levelSet": "orange_beam_highway_stones_and_promesst",
      "levelSetPosition": 3,
      "candidateThemeGroup": "orange_beam_highway_stones_and_promesst",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-087-source.webp",
        "cue": "Article puzzle 87; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Cross beams for a four-tile shortcut.",
        "利用光束交叉实现四格捷径。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 87 selected layout",
          "zh": "Low Beamcasters 文章第 87 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-087.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 87,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-087-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "c9e2c95f3fa777d81f3780235050a36a9e7901bca6fd21d80d926ea9db24d1e8",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-087-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "c9e2c95f3fa777d81f3780235050a36a9e7901bca6fd21d80d926ea9db24d1e8",
            "imageSha256": "26920a6046c5cdbcd21e904799c478f8b8d0512963ca03511c7b417a190f67a0",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 802,
                  "y": 16,
                  "width": 156,
                  "height": 32,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 802,
                "y": 16,
                "width": 156,
                "height": 32,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "87",
                "color": "#168bd2",
                "center": {
                  "x": 114,
                  "y": 283
                },
                "rect": [
                  86,
                  255,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "orange emitter at the left edge",
                  "zh": "左侧边缘的橙色发射器"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 87 selected layout; ring marks orange emitter at the left edge.",
              "zh": "Low Beamcasters 文章第 87 题选定布局；圆环标出左侧边缘的橙色发射器。"
            },
            "instruction": {
              "en": "Cross beams for a four-tile shortcut.",
              "zh": "利用光束交叉实现四格捷径。"
            },
            "result": {
              "en": "Ring marks orange emitter at the left edge.",
              "zh": "圆环标出左侧边缘的橙色发射器。"
            },
            "sourceCue": "Low Beamcasters article puzzle 87; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "orange_water_button_vfour_alter",
      "articlePuzzleNumber": 88,
      "levelSet": "orange_beam_highway_stones_and_promesst",
      "levelSetPosition": 4,
      "candidateThemeGroup": "orange_beam_highway_stones_and_promesst",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-088-source.webp",
        "cue": "Article puzzle 88; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Use multicolored light at the crossing.",
        "在交叉处利用彩色光束。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 88 selected layout",
          "zh": "Low Beamcasters 文章第 88 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-088.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 88,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-088-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "f0a10fde5bf87ca5c025dec79e7551139a44120dbc5a75a48b3f9b3897511f7e",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-088-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "f0a10fde5bf87ca5c025dec79e7551139a44120dbc5a75a48b3f9b3897511f7e",
            "imageSha256": "12b935805d7b6cd30ad0e420b257d93c88350d8ee831b4b61d149a1478071e66",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "88",
                "color": "#168bd2",
                "center": {
                  "x": 912,
                  "y": 423
                },
                "rect": [
                  884,
                  395,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "cyan pad at the lower-right corner",
                  "zh": "右下角的青色垫"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 88 selected layout; ring marks cyan pad at the lower-right corner.",
              "zh": "Low Beamcasters 文章第 88 题选定布局；圆环标出右下角的青色垫。"
            },
            "instruction": {
              "en": "Use multicolored light at the crossing.",
              "zh": "在交叉处利用彩色光束。"
            },
            "result": {
              "en": "Ring marks cyan pad at the lower-right corner.",
              "zh": "圆环标出右下角的青色垫。"
            },
            "sourceCue": "Low Beamcasters article puzzle 88; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "orange_mirror_walk_button",
      "articlePuzzleNumber": 89,
      "levelSet": "orange_beam_highway_stones_and_promesst",
      "levelSetPosition": 1,
      "candidateThemeGroup": "orange_beam_highway_stones_and_promesst",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-089-source.webp",
        "cue": "Article puzzle 89; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Hold the mirror’s lily pad in place.",
        "把镜子所在的睡莲平台固定住。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 89 selected layout",
          "zh": "Low Beamcasters 文章第 89 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-089.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 89,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-089-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "83dfd808aea3f2ba308676a648523d8b78adadce7d4f1852a8b525188562b65a",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-089-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "83dfd808aea3f2ba308676a648523d8b78adadce7d4f1852a8b525188562b65a",
            "imageSha256": "941b03ba4b1d8b7b8a4abd5cf3db43d31e51f457b4568aea58bafd4c666792e9",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "89",
                "color": "#168bd2",
                "center": {
                  "x": 280,
                  "y": 180
                },
                "rect": [
                  252,
                  152,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "the mirror near the upper-left terrace",
                  "zh": "左上露台旁的镜子"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 89 selected layout; ring marks the mirror near the upper-left terrace.",
              "zh": "Low Beamcasters 文章第 89 题选定布局；圆环标出左上露台旁的镜子。"
            },
            "instruction": {
              "en": "Hold the mirror’s lily pad in place.",
              "zh": "把镜子所在的睡莲平台固定住。"
            },
            "result": {
              "en": "Ring marks the mirror near the upper-left terrace.",
              "zh": "圆环标出左上露台旁的镜子。"
            },
            "sourceCue": "Low Beamcasters article puzzle 89; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "3wcn_purple_mirror_skip",
      "articlePuzzleNumber": 90,
      "levelSet": "orange_beam_highway_worlds_collide",
      "levelSetPosition": 2,
      "candidateThemeGroup": "orange_beam_highway_worlds_collide",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-090-source.webp",
        "cue": "Article puzzle 90; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Time the crystal stone’s endpoint teleport.",
        "把握水晶跳石传到终点的时机。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 90 selected layout",
          "zh": "Low Beamcasters 文章第 90 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-090.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 90,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-090-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "5426ab5c3d9f00438394d624f316334d242ad04391b6aa681ddecaa79ad3eedd",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-090-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "5426ab5c3d9f00438394d624f316334d242ad04391b6aa681ddecaa79ad3eedd",
            "imageSha256": "ed6a4fed884fc6fd52301307e262dd5213478c630a8f29c3b3b2e947827463de",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "90",
                "color": "#168bd2",
                "center": {
                  "x": 862,
                  "y": 351
                },
                "rect": [
                  834,
                  323,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "cyan pad on the small right island",
                  "zh": "右侧小岛上的青色垫"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 90 selected layout; ring marks cyan pad on the small right island.",
              "zh": "Low Beamcasters 文章第 90 题选定布局；圆环标出右侧小岛上的青色垫。"
            },
            "instruction": {
              "en": "Time the crystal stone’s endpoint teleport.",
              "zh": "把握水晶跳石传到终点的时机。"
            },
            "result": {
              "en": "Ring marks cyan pad on the small right island.",
              "zh": "圆环标出右侧小岛上的青色垫。"
            },
            "sourceCue": "Low Beamcasters article puzzle 90; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "layered_alt",
      "articlePuzzleNumber": 91,
      "levelSet": "lily_highway_mirrors_and_stones",
      "levelSetPosition": 6,
      "candidateThemeGroup": "lily_highway_mirrors_and_stones",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-091-source.webp",
        "cue": "Article puzzle 91; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Press blue before green.",
        "先按蓝色按钮，再按绿色按钮。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 91 selected layout",
          "zh": "Low Beamcasters 文章第 91 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-091.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 91,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-091-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "0cdecbb2da3b6e86e0b5d49ca83d37dd8989a26532ef959f854afb9b43f2f099",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-091-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "0cdecbb2da3b6e86e0b5d49ca83d37dd8989a26532ef959f854afb9b43f2f099",
            "imageSha256": "9cfb469f26720988289f504b2e1821af04ce3a69944d3de1aeaaf7b91573da80",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "91",
                "color": "#168bd2",
                "center": {
                  "x": 444,
                  "y": 238
                },
                "rect": [
                  416,
                  210,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "left blue stone on the upper walkway",
                  "zh": "上方步道上左侧的蓝色石块"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 91 selected layout; ring marks left blue stone on the upper walkway.",
              "zh": "Low Beamcasters 文章第 91 题选定布局；圆环标出上方步道上左侧的蓝色石块。"
            },
            "instruction": {
              "en": "Press blue before green.",
              "zh": "先按蓝色按钮，再按绿色按钮。"
            },
            "result": {
              "en": "Ring marks left blue stone on the upper walkway.",
              "zh": "圆环标出上方步道上左侧的蓝色石块。"
            },
            "sourceCue": "Low Beamcasters article puzzle 91; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "sick_270_small",
      "articlePuzzleNumber": 92,
      "levelSet": "lily_highway_mirrors_and_stones",
      "levelSetPosition": 5,
      "candidateThemeGroup": "lily_highway_mirrors_and_stones",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-092-source.webp",
        "cue": "Article puzzle 92; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Turn the mirror through a wraparound.",
        "利用环绕让镜子转过方向。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 92 selected layout",
          "zh": "Low Beamcasters 文章第 92 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-092.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 92,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-092-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "d8022c65bc46093a589f4789d40261f89e1c91d93ea013e318fbf567350af47a",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-092-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "d8022c65bc46093a589f4789d40261f89e1c91d93ea013e318fbf567350af47a",
            "imageSha256": "3cae4c8f30704c72e2b60eb5dd483f0b2b2e5cfe118328bbbd658eef23e72aa6",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "92",
                "color": "#168bd2",
                "center": {
                  "x": 281,
                  "y": 346
                },
                "rect": [
                  253,
                  318,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "left striped panel in the courtyard",
                  "zh": "庭院中左侧的条纹面板"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 92 selected layout; ring marks left striped panel in the courtyard.",
              "zh": "Low Beamcasters 文章第 92 题选定布局；圆环标出庭院中左侧的条纹面板。"
            },
            "instruction": {
              "en": "Turn the mirror through a wraparound.",
              "zh": "利用环绕让镜子转过方向。"
            },
            "result": {
              "en": "Ring marks left striped panel in the courtyard.",
              "zh": "圆环标出庭院中左侧的条纹面板。"
            },
            "sourceCue": "Low Beamcasters article puzzle 92; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "before_wings",
      "articlePuzzleNumber": 94,
      "levelSet": "lily_highway_mirrors_and_stones",
      "levelSetPosition": 10,
      "candidateThemeGroup": "lily_highway_mirrors_and_stones",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-094-source.webp",
        "cue": "Article puzzle 94; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Keep the yellow and blue buttons clear.",
        "别让石头压住黄蓝按钮。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 94 selected layout",
          "zh": "Low Beamcasters 文章第 94 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-094.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 94,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-094-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "1be34bac977c4549f6d7782eb7fd203a09703142f3fe23874e65ba1023adf8d4",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-094-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "1be34bac977c4549f6d7782eb7fd203a09703142f3fe23874e65ba1023adf8d4",
            "imageSha256": "59dd0e098f2d600fb6941ac5103719c71644f2de68a9b677595f6f011b463f25",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "94",
                "color": "#168bd2",
                "center": {
                  "x": 734,
                  "y": 490
                },
                "rect": [
                  706,
                  462,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "yellow pad at the lower-right edge",
                  "zh": "右下边缘的黄色垫"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 94 selected layout; ring marks yellow pad at the lower-right edge.",
              "zh": "Low Beamcasters 文章第 94 题选定布局；圆环标出右下边缘的黄色垫。"
            },
            "instruction": {
              "en": "Keep the yellow and blue buttons clear.",
              "zh": "别让石头压住黄蓝按钮。"
            },
            "result": {
              "en": "Ring marks yellow pad at the lower-right edge.",
              "zh": "圆环标出右下边缘的黄色垫。"
            },
            "sourceCue": "Low Beamcasters article puzzle 94; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "after_wings",
      "articlePuzzleNumber": 96,
      "levelSet": "lily_highway_mirrors_and_stones",
      "levelSetPosition": 12,
      "candidateThemeGroup": "lily_highway_mirrors_and_stones",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-096-source.webp",
        "cue": "Article puzzle 96; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Send two stones toward the middle.",
        "让两块石头从两侧向中间移动。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 96 selected layout",
          "zh": "Low Beamcasters 文章第 96 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-096.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 96,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-096-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "91e17a5ae0fe04c038c0ba15c857f068e6173dd193b40275bbcda7f36d64a0ca",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-096-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "91e17a5ae0fe04c038c0ba15c857f068e6173dd193b40275bbcda7f36d64a0ca",
            "imageSha256": "ebfabbd320ff80179bb442071fe525672868e1804b76ec1ad689c23dcc542431",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "96",
                "color": "#168bd2",
                "center": {
                  "x": 770,
                  "y": 298
                },
                "rect": [
                  742,
                  270,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "green stone on the right vertical platform",
                  "zh": "右侧纵向平台上的绿色石块"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 96 selected layout; ring marks green stone on the right vertical platform.",
              "zh": "Low Beamcasters 文章第 96 题选定布局；圆环标出右侧纵向平台上的绿色石块。"
            },
            "instruction": {
              "en": "Send two stones toward the middle.",
              "zh": "让两块石头从两侧向中间移动。"
            },
            "result": {
              "en": "Ring marks green stone on the right vertical platform.",
              "zh": "圆环标出右侧纵向平台上的绿色石块。"
            },
            "sourceCue": "Low Beamcasters article puzzle 96; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "infinite_looping_skipper_far",
      "articlePuzzleNumber": 99,
      "levelSet": "lily_highway_mirrors_and_stones",
      "levelSetPosition": 3,
      "candidateThemeGroup": "lily_highway_mirrors_and_stones",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-099-source.webp",
        "cue": "Article puzzle 99; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Guide the crystal stone toward the button.",
        "把水晶跳石引向按钮。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 99 selected layout",
          "zh": "Low Beamcasters 文章第 99 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-099.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 99,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-099-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "e086d86a8ceb3c1946db28b7125d57174a1b2ada87cfbb843ab042fac2895228",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-099-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "e086d86a8ceb3c1946db28b7125d57174a1b2ada87cfbb843ab042fac2895228",
            "imageSha256": "4e826286225c005f5c424029e35f8774b0dc44b9c116ab4490e314d456b30390",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "99",
                "color": "#168bd2",
                "center": {
                  "x": 440,
                  "y": 240
                },
                "rect": [
                  412,
                  212,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "the mirror on the pale ledge",
                  "zh": "浅色平台上的镜子"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 99 selected layout; ring marks the mirror on the pale ledge.",
              "zh": "Low Beamcasters 文章第 99 题选定布局；圆环标出浅色平台上的镜子。"
            },
            "instruction": {
              "en": "Guide the crystal stone toward the button.",
              "zh": "把水晶跳石引向按钮。"
            },
            "result": {
              "en": "Ring marks the mirror on the pale ledge.",
              "zh": "圆环标出浅色平台上的镜子。"
            },
            "sourceCue": "Low Beamcasters article puzzle 99; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "swapwiz_harder",
      "articlePuzzleNumber": 101,
      "levelSet": "lily_highway_heroes_and_stones",
      "levelSetPosition": 4,
      "candidateThemeGroup": "lily_highway_heroes_and_stones",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-101-source.webp",
        "cue": "Article puzzle 101; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Swap with the stone while it skims.",
        "在跳石掠水时与它交换位置。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 101 selected layout",
          "zh": "Low Beamcasters 文章第 101 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-101.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 101,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-101-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "85b9bac16e0e3a443defbbd70f3fb45624bb5ebd868ae0098705212b1ee45bb1",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-101-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "85b9bac16e0e3a443defbbd70f3fb45624bb5ebd868ae0098705212b1ee45bb1",
            "imageSha256": "69eecea86604038bb336933e665d14032f592c63bf0fd6c8b82082918ed16625",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "101",
                "color": "#168bd2",
                "center": {
                  "x": 160,
                  "y": 299
                },
                "rect": [
                  132,
                  271,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "upper pink pad on the left island",
                  "zh": "左侧小岛上方的粉色垫"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 101 selected layout; ring marks upper pink pad on the left island.",
              "zh": "Low Beamcasters 文章第 101 题选定布局；圆环标出左侧小岛上方的粉色垫。"
            },
            "instruction": {
              "en": "Swap with the stone while it skims.",
              "zh": "在跳石掠水时与它交换位置。"
            },
            "result": {
              "en": "Ring marks upper pink pad on the left island.",
              "zh": "圆环标出左侧小岛上方的粉色垫。"
            },
            "sourceCue": "Low Beamcasters article puzzle 101; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "4wcn_all_fast",
      "articlePuzzleNumber": 102,
      "levelSet": "orange_beam_highway_worlds_collide",
      "levelSetPosition": 3,
      "candidateThemeGroup": "orange_beam_highway_worlds_collide",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-102-source.webp",
        "cue": "Article puzzle 102; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Chain the Wizard’s instant moves.",
        "串联巫师的瞬移动作。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 102 selected layout",
          "zh": "Low Beamcasters 文章第 102 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-102.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 102,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-102-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "7970f8fbe50e025a5cf5a1eaf14f2291cba7958b1976ff9af5bc8d9d19237878",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-102-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "7970f8fbe50e025a5cf5a1eaf14f2291cba7958b1976ff9af5bc8d9d19237878",
            "imageSha256": "d135287fbb4cea3022c30035049f302ee00192630b6e44ce398677f5f983195f",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "102",
                "color": "#168bd2",
                "center": {
                  "x": 733,
                  "y": 393
                },
                "rect": [
                  705,
                  365,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "blue orb beside the lower blue cube",
                  "zh": "下方蓝色方块旁的蓝色球体"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 102 selected layout; ring marks blue orb beside the lower blue cube.",
              "zh": "Low Beamcasters 文章第 102 题选定布局；圆环标出下方蓝色方块旁的蓝色球体。"
            },
            "instruction": {
              "en": "Chain the Wizard’s instant moves.",
              "zh": "串联巫师的瞬移动作。"
            },
            "result": {
              "en": "Ring marks blue orb beside the lower blue cube.",
              "zh": "圆环标出下方蓝色方块旁的蓝色球体。"
            },
            "sourceCue": "Low Beamcasters article puzzle 102; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "4wc_dragon_cyan_s_v2",
      "articlePuzzleNumber": 103,
      "levelSet": "orange_beam_highway_worlds_collide",
      "levelSetPosition": 4,
      "candidateThemeGroup": "orange_beam_highway_worlds_collide",
      "articleCue": {
        "videoPart": null,
        "time": null,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "low-beamcasters-article",
        "file": "/evidence/low-beamcasters-puzzle-103-source.webp",
        "cue": "Article puzzle 103; exact PTS unknown",
        "exactPtsKnown": false
      },
      "instruction": [
        "Float the crystal stone upward with cyan light.",
        "用青色光束把水晶跳石浮起。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters article puzzle 103 selected layout",
          "zh": "Low Beamcasters 文章第 103 题选定布局"
        },
        "opening": {
          "en": "The ring marks a visible landmark, not an action step.",
          "zh": "圆环标出可见地标，并非操作步骤。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/low-beamcasters/puzzle-103.svg",
            "width": 960,
            "height": 540,
            "articlePuzzleNumber": 103,
            "sourceFrameFile": "/evidence/low-beamcasters-puzzle-103-source.webp",
            "sourceFrameFormat": "image/webp",
            "sourceFrameSha256": "e75ca3fa8de3366c55f6dd419a162602376ba814ef1bbb116f0e6af98571c4ee",
            "displaySourceFile": "/evidence/low-beamcasters-puzzle-103-source.webp",
            "displayFrameFormat": "image/webp",
            "displayFrameSha256": "e75ca3fa8de3366c55f6dd419a162602376ba814ef1bbb116f0e6af98571c4ee",
            "imageSha256": "d0e5877eac736c7bd0b8431fae452a9f97f14f53fd75ff308a87dad0f4fd36ab",
            "sourceTimeLabel": "Article cue: numbered still; exact PTS unknown.",
            "checkpointActionIndex": null,
            "crop": {
              "x": 0,
              "y": 0,
              "width": 960,
              "height": 540,
              "excludedRects": [
                {
                  "x": 800,
                  "y": 16,
                  "width": 158,
                  "height": 36,
                  "purpose": "bilibili-watermark",
                  "reason": "Mask covers only empty scenery above playable tiles in this frame."
                },
                {
                  "x": 0,
                  "y": 520,
                  "width": 52,
                  "height": 14,
                  "purpose": "fps-counter",
                  "reason": "Performance counter overlays the lower-left scenery margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 800,
                "y": 16,
                "width": 158,
                "height": 36,
                "purpose": "bilibili-watermark",
                "reason": "Mask covers only empty scenery above playable tiles in this frame."
              },
              {
                "x": 0,
                "y": 520,
                "width": 52,
                "height": 14,
                "purpose": "fps-counter",
                "reason": "Performance counter overlays the lower-left scenery margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "badge": "103",
                "color": "#168bd2",
                "center": {
                  "x": 480,
                  "y": 119
                },
                "rect": [
                  452,
                  91,
                  56,
                  56
                ],
                "radius": 28,
                "target": {
                  "en": "cyan pad beside the upper-right island",
                  "zh": "右上小岛旁的青色垫"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters article puzzle 103 selected layout; ring marks cyan pad beside the upper-right island.",
              "zh": "Low Beamcasters 文章第 103 题选定布局；圆环标出右上小岛旁的青色垫。"
            },
            "instruction": {
              "en": "Float the crystal stone upward with cyan light.",
              "zh": "用青色光束把水晶跳石浮起。"
            },
            "result": {
              "en": "Ring marks cyan pad beside the upper-right island.",
              "zh": "圆环标出右上小岛旁的青色垫。"
            },
            "sourceCue": "Low Beamcasters article puzzle 103; exact PTS unknown.",
            "exactPtsKnown": false
          }
        ]
      }
    },
    {
      "levelId": "en_root_alt",
      "articlePuzzleNumber": 5,
      "articleSection": "Puzzle 5",
      "articleGroup": "low-beamcasters",
      "articleReportedHint": {
        "en": "Use blue light through plant roots.",
        "zh": "借蓝光穿过植物根系。",
        "basis": "article-reported-key-idea",
        "sourceId": "low-beamcasters-article",
        "sourceSection": "Puzzle 5"
      },
      "existingSourceHint": {
        "en": "Use blue light through plant roots.",
        "zh": "借蓝光穿过植物根系。"
      },
      "articleIdentityEvidence": [
        {
          "evidenceFile": "low-beamcasters-candidate-classification-2026-10-23.json",
          "recordPath": "root.records[4]",
          "classification": "confirmed-shipped",
          "articlePuzzleNumber": 5,
          "source": {
            "sourceId": "low-beamcasters-article",
            "url": "https://sinkingstarwalkthrough.com/img/low/low-beamcasters/puzzle-05.webp",
            "section": "Puzzle 5",
            "file": "/evidence/low-beamcasters-puzzle-005-source.webp",
            "bytes": 50330,
            "sha256": "fcf63bccabe34cfd51341182e6f6e6dfadc7c896f7cf8becc40f8a68bf77c75c",
            "dimensions": [
              960,
              540
            ],
            "articleHtmlSha256": "05de7893ea0eedba49f7b9d93a4e0bfd9be1027c5b40c37bdbee49e91d743b0c",
            "pageSlug": "low-beamcasters-solutions"
          }
        }
      ],
      "articleStillIdentity": {
        "source": {
          "sourceId": "low-beamcasters-article",
          "url": "https://sinkingstarwalkthrough.com/img/low/low-beamcasters/puzzle-05.webp",
          "section": "Puzzle 5",
          "file": "/evidence/low-beamcasters-puzzle-005-source.webp",
          "bytes": 50330,
          "sha256": "fcf63bccabe34cfd51341182e6f6e6dfadc7c896f7cf8becc40f8a68bf77c75c",
          "dimensions": [
            960,
            540
          ],
          "articleHtmlSha256": "05de7893ea0eedba49f7b9d93a4e0bfd9be1027c5b40c37bdbee49e91d743b0c",
          "pageSlug": "low-beamcasters-solutions"
        }
      },
      "articleStillDisplayRejection": {
        "status": "article-still-not-displayed",
        "reason": "Watermark covers the blue crystal and tiles at the upper-right edge; the source still is retained but not displayed.",
        "sourceFrameFile": "/evidence/low-beamcasters-puzzle-005-source.webp",
        "sourceFrameSha256": "fcf63bccabe34cfd51341182e6f6e6dfadc7c896f7cf8becc40f8a68bf77c75c"
      },
      "nativeTexture": {
        "entry": "data-pc/__en_root_alt.texture",
        "bytes": 775017,
        "sha256": "b5cbdcd939b9873c61f6db55c4d5542c002ca5ffee65c5b66fe861ba52f9f712",
        "dimensions": [
          2048,
          1152
        ],
        "formatId": 256
      },
      "nativeSource": {
        "entities": {
          "entry": "data-common/en_root_alt.entities",
          "bytes": 352802,
          "sha256": "3cda3366726d31c7ba25383555f2d93cd1dcf2da7de9995dd2c0661e758a409f"
        },
        "levelManifest": {
          "entry": "data-common/en_root_alt.level_manifest",
          "bytes": 5016,
          "sha256": "28f5db515f1b2c8035551dff02add9923095fa08593fe4778a98b7976997f461"
        }
      },
      "setMemberships": [
        {
          "set": "drafts_arted",
          "positions": [
            688
          ]
        },
        {
          "set": "monsters_and_beams",
          "positions": [
            5
          ]
        }
      ],
      "overworldEntry": {
        "levelId": "en_root_alt",
        "entityId": 94377701,
        "position": {
          "x": 61.0,
          "y": 95.0,
          "z": -23.0
        },
        "unlockPrerequisiteIds": [],
        "unlockIsOrGate": false,
        "demoPhase": null,
        "towerFlags": null,
        "achievement": null,
        "currentlyBroken": false,
        "currentlyDisfavored": false,
        "sourceEntry": "data-common/overworld.entities",
        "setThemeGroup": "monsters_and_beams"
      },
      "levelSet": "monsters_and_beams",
      "levelSetPosition": 5,
      "candidateThemeGroup": "monsters_and_beams",
      "inventoryStatusRetained": "overworld-entry-linked",
      "sourceId": "low-beamcasters-article",
      "videoSourceId": "remaining29-bilibili-part-54-encoding",
      "observationSourceId": "remaining29-selected-video-frame-observations",
      "articleCue": {
        "sourceId": "low-beamcasters-article",
        "section": "Puzzle 5",
        "articlePuzzleNumber": 5,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "remaining29-bilibili-part-54-encoding",
        "url": "https://www.bilibili.com/video/BV13FH96bE4m?p=54",
        "playlistPart": 54,
        "cid": 42782363110,
        "file": "/evidence/remaining29-selected-video-frames-2026-10-25/en_root_alt-p54-634s.jpg",
        "sha256": "55dec6b14e31557547f795d52418ab6d1056c056d017e6366ea5a1da77df8417",
        "cue": "Selected source-video state; exact timing is stored in the observation evidence."
      },
      "instruction": [
        "Use blue light through plant roots.",
        "借蓝光穿过植物根系。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters Puzzle 5 selected view",
          "zh": "Low Beamcasters 谜题 5选定画面"
        },
        "opening": {
          "en": "Selected room view.",
          "zh": "选定的关卡画面。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/remaining29-selected-video-frames/en_root_alt-selected.svg",
            "width": 852,
            "height": 480,
            "articlePuzzleNumber": 5,
            "articleSection": "Puzzle 5",
            "sourceFrameFile": "/evidence/remaining29-selected-video-frames-2026-10-25/en_root_alt-p54-634s.jpg",
            "sourceFrameFormat": "image/jpeg",
            "sourceFrameSha256": "55dec6b14e31557547f795d52418ab6d1056c056d017e6366ea5a1da77df8417",
            "sourceFrameBytes": 82133,
            "displaySourceFile": "/evidence/remaining29-selected-video-frames-2026-10-25/en_root_alt-p54-634s.jpg",
            "displayFrameFormat": "image/jpeg",
            "displayFrameSha256": "55dec6b14e31557547f795d52418ab6d1056c056d017e6366ea5a1da77df8417",
            "imageSha256": "1ff0062e57e99fdf400bc76d4e714f898a886961b4797e281221fe90ff27a246",
            "sourceTimeLabel": "Selected source-video view; exact timing is retained in the observation record.",
            "sourceId": "remaining29-bilibili-part-54-encoding",
            "observationSourceId": "remaining29-selected-video-frame-observations",
            "crop": {
              "x": 0,
              "y": 0,
              "width": 852,
              "height": 480,
              "excludedRects": [
                {
                  "x": 713,
                  "y": 12,
                  "width": 139,
                  "height": 35,
                  "purpose": "creator-logo",
                  "reason": "Root checked this selected original: logo lies on empty water, sky or non-walkable exterior roof/wall above all puzzle floors."
                },
                {
                  "x": 0,
                  "y": 472,
                  "width": 32,
                  "height": 8,
                  "purpose": "fps",
                  "reason": "FPS lies outside walkable floor in the bottom-left margin."
                }
              ]
            },
            "displayMasks": [
              {
                "x": 713,
                "y": 12,
                "width": 139,
                "height": 35,
                "purpose": "creator-logo",
                "reason": "Root checked this selected original: logo lies on empty water, sky or non-walkable exterior roof/wall above all puzzle floors."
              },
              {
                "x": 0,
                "y": 472,
                "width": 32,
                "height": 8,
                "purpose": "fps",
                "reason": "FPS lies outside walkable floor in the bottom-left margin."
              }
            ],
            "markers": [
              {
                "type": "layout-reference",
                "color": "#31bfff",
                "center": {
                  "x": 308,
                  "y": 108
                },
                "radius": 16,
                "target": {
                  "en": "the tall plant on the left",
                  "zh": "左侧较高的植物"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters Puzzle 5 selected room view; the ring marks the tall plant on the left.",
              "zh": "谜题 5选定的关卡画面；蓝圈标出左侧较高的植物。"
            },
            "instruction": {
              "en": "Find the tall plant on the left.",
              "zh": "找到左侧较高的植物。"
            },
            "result": {
              "en": "The blue ring marks the tall plant on the left.",
              "zh": "蓝圈标出左侧较高的植物。"
            },
            "sourceCue": "Selected source-video frame; the precise PTS/time base is in the observation evidence.",
            "exactPtsKnown": true
          }
        ]
      }
    },
    {
      "levelId": "get_through_depths",
      "articlePuzzleNumber": 16,
      "articleSection": "Puzzle 16",
      "articleGroup": "low-beamcasters",
      "articleReportedHint": {
        "en": "Break the stone in orange light.",
        "zh": "在橙光中击碎石块。",
        "basis": "article-reported-key-idea",
        "sourceId": "low-beamcasters-article",
        "sourceSection": "Puzzle 16"
      },
      "existingSourceHint": {
        "en": "Break the stone in orange light.",
        "zh": "在橙光中击碎石块。"
      },
      "articleIdentityEvidence": [
        {
          "evidenceFile": "low-beamcasters-candidate-classification-2026-10-23.json",
          "recordPath": "root.records[11]",
          "classification": "confirmed-shipped",
          "articlePuzzleNumber": 16,
          "source": {
            "sourceId": "low-beamcasters-article",
            "url": "https://sinkingstarwalkthrough.com/img/low/low-beamcasters/puzzle-16.webp",
            "section": "Puzzle 16",
            "file": "/evidence/low-beamcasters-puzzle-016-source.webp",
            "bytes": 36400,
            "sha256": "1c0f91d77ed5105552944c0e30a595fdd82af1f01bb9cddda4902b3d03b6405e",
            "dimensions": [
              960,
              540
            ],
            "articleHtmlSha256": "05de7893ea0eedba49f7b9d93a4e0bfd9be1027c5b40c37bdbee49e91d743b0c",
            "pageSlug": "low-beamcasters-solutions"
          }
        }
      ],
      "articleStillIdentity": {
        "source": {
          "sourceId": "low-beamcasters-article",
          "url": "https://sinkingstarwalkthrough.com/img/low/low-beamcasters/puzzle-16.webp",
          "section": "Puzzle 16",
          "file": "/evidence/low-beamcasters-puzzle-016-source.webp",
          "bytes": 36400,
          "sha256": "1c0f91d77ed5105552944c0e30a595fdd82af1f01bb9cddda4902b3d03b6405e",
          "dimensions": [
            960,
            540
          ],
          "articleHtmlSha256": "05de7893ea0eedba49f7b9d93a4e0bfd9be1027c5b40c37bdbee49e91d743b0c",
          "pageSlug": "low-beamcasters-solutions"
        }
      },
      "articleStillDisplayRejection": {
        "status": "article-still-not-displayed",
        "reason": "The creator mark overlaps the blue octagonal gem at the upper-right edge of the original frame; no safe full-board mask.",
        "sourceFrameFile": "/evidence/low-beamcasters-puzzle-016-source.webp",
        "sourceFrameSha256": "1c0f91d77ed5105552944c0e30a595fdd82af1f01bb9cddda4902b3d03b6405e"
      },
      "nativeTexture": {
        "entry": "data-pc/__get_through_depths.texture",
        "bytes": 791616,
        "sha256": "04904aa10b2d7b54ef7161436a410a9d35725cb4e382761b5c54019b4b6057b9",
        "dimensions": [
          2048,
          1152
        ],
        "formatId": 256
      },
      "nativeSource": {
        "entities": {
          "entry": "data-common/get_through_depths.entities",
          "bytes": 128754,
          "sha256": "15c4a170edbe077ba6947dc770d7e558861f7f14045c53fa6f3cdade64010585"
        },
        "levelManifest": {
          "entry": "data-common/get_through_depths.level_manifest",
          "bytes": 5071,
          "sha256": "0bc617306b578a586537478069806eec2399a3854674d0a6fa29289b982c8cea"
        }
      },
      "setMemberships": [
        {
          "set": "underworld_mirrors_and_promesst",
          "positions": [
            9
          ]
        }
      ],
      "overworldEntry": {
        "levelId": "get_through_depths",
        "entityId": 95454722,
        "position": {
          "x": 43.0,
          "y": 83.0,
          "z": -21.0
        },
        "unlockPrerequisiteIds": [],
        "unlockIsOrGate": false,
        "demoPhase": null,
        "towerFlags": null,
        "achievement": null,
        "currentlyBroken": false,
        "currentlyDisfavored": false,
        "sourceEntry": "data-common/overworld.entities",
        "setThemeGroup": "underworld_mirrors_and_promesst"
      },
      "levelSet": "underworld_mirrors_and_promesst",
      "levelSetPosition": 9,
      "candidateThemeGroup": "underworld_mirrors_and_promesst",
      "inventoryStatusRetained": "overworld-entry-linked",
      "sourceId": "low-beamcasters-article",
      "videoSourceId": "remaining29-bilibili-part-55-encoding",
      "observationSourceId": "remaining29-selected-video-frame-observations",
      "articleCue": {
        "sourceId": "low-beamcasters-article",
        "section": "Puzzle 16",
        "articlePuzzleNumber": 16,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "remaining29-bilibili-part-55-encoding",
        "url": "https://www.bilibili.com/video/BV13FH96bE4m?p=55",
        "playlistPart": 55,
        "cid": 42784458743,
        "file": "/evidence/remaining29-selected-video-frames-2026-10-25/get_through_depths-p55-1086s.jpg",
        "sha256": "04ff8e90b86a1f45195967d23d30ef49152085acdb7664f08aa76f2f904a86b4",
        "cue": "Selected source-video state; exact timing is stored in the observation evidence."
      },
      "instruction": [
        "Break the stone in orange light.",
        "在橙光中击碎石块。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters Puzzle 16 selected view",
          "zh": "Low Beamcasters 谜题 16选定画面"
        },
        "opening": {
          "en": "Selected room detail.",
          "zh": "选定的房间局部画面。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/remaining29-selected-video-frames/get_through_depths-selected.svg",
            "width": 852,
            "height": 420,
            "articlePuzzleNumber": 16,
            "articleSection": "Puzzle 16",
            "sourceFrameFile": "/evidence/remaining29-selected-video-frames-2026-10-25/get_through_depths-p55-1086s.jpg",
            "sourceFrameFormat": "image/jpeg",
            "sourceFrameSha256": "04ff8e90b86a1f45195967d23d30ef49152085acdb7664f08aa76f2f904a86b4",
            "sourceFrameBytes": 65624,
            "displaySourceFile": "/evidence/remaining29-selected-video-frames-2026-10-25/get_through_depths-p55-1086s.jpg",
            "displayFrameFormat": "image/jpeg",
            "displayFrameSha256": "04ff8e90b86a1f45195967d23d30ef49152085acdb7664f08aa76f2f904a86b4",
            "imageSha256": "83567a5abdafab1c2867dd4c8b11a45df54cff75de5968e1b58ee30415e751c9",
            "sourceTimeLabel": "Selected source-video view; exact timing is retained in the observation record.",
            "sourceId": "remaining29-bilibili-part-55-encoding",
            "observationSourceId": "remaining29-selected-video-frame-observations",
            "crop": {
              "x": 0,
              "y": 50,
              "width": 852,
              "height": 420,
              "excludedRects": []
            },
            "displayMasks": [],
            "markers": [
              {
                "type": "layout-reference",
                "color": "#31bfff",
                "center": {
                  "x": 370,
                  "y": 123
                },
                "radius": 16,
                "target": {
                  "en": "the yellow beamcaster at the upper beam crossing",
                  "zh": "上方光束交叉处的黄色发射器"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters Puzzle 16 selected room detail; the ring marks the yellow beamcaster at the upper beam crossing.",
              "zh": "谜题 16选定的房间局部画面；蓝圈标出上方光束交叉处的黄色发射器。"
            },
            "instruction": {
              "en": "Find the yellow beamcaster at the upper beam crossing.",
              "zh": "找到上方光束交叉处的黄色发射器。"
            },
            "result": {
              "en": "The blue ring marks the yellow beamcaster at the upper beam crossing.",
              "zh": "蓝圈标出上方光束交叉处的黄色发射器。"
            },
            "sourceCue": "Selected source-video frame; the precise PTS/time base is in the observation evidence.",
            "exactPtsKnown": true
          }
        ]
      }
    },
    {
      "levelId": "3wcn_stonehenge",
      "articlePuzzleNumber": 27,
      "articleSection": "Puzzle 27",
      "articleGroup": "low-beamcasters",
      "articleReportedHint": {
        "en": "Block dragons before the stone lands.",
        "zh": "在石头落下前挡住三条龙。",
        "basis": "article-reported-key-idea",
        "sourceId": "low-beamcasters-article",
        "sourceSection": "Puzzle 27"
      },
      "existingSourceHint": {
        "en": "Block dragons before the stone lands.",
        "zh": "在石头落下前挡住三条龙。"
      },
      "articleIdentityEvidence": [
        {
          "evidenceFile": "low-beamcasters-candidate-classification-2026-10-23.json",
          "recordPath": "root.records[21]",
          "classification": "confirmed-shipped",
          "articlePuzzleNumber": 27,
          "source": {
            "sourceId": "low-beamcasters-article",
            "url": "https://sinkingstarwalkthrough.com/img/low/low-beamcasters/puzzle-27.webp",
            "section": "Puzzle 27",
            "file": "/evidence/low-beamcasters-puzzle-027-source.webp",
            "bytes": 47488,
            "sha256": "3416f519663a9a6799c89f572e35449ad9f9d6909fe75ba73f51c7456750b8bc",
            "dimensions": [
              960,
              540
            ],
            "articleHtmlSha256": "05de7893ea0eedba49f7b9d93a4e0bfd9be1027c5b40c37bdbee49e91d743b0c",
            "pageSlug": "low-beamcasters-solutions"
          }
        }
      ],
      "articleStillIdentity": {
        "source": {
          "sourceId": "low-beamcasters-article",
          "url": "https://sinkingstarwalkthrough.com/img/low/low-beamcasters/puzzle-27.webp",
          "section": "Puzzle 27",
          "file": "/evidence/low-beamcasters-puzzle-027-source.webp",
          "bytes": 47488,
          "sha256": "3416f519663a9a6799c89f572e35449ad9f9d6909fe75ba73f51c7456750b8bc",
          "dimensions": [
            960,
            540
          ],
          "articleHtmlSha256": "05de7893ea0eedba49f7b9d93a4e0bfd9be1027c5b40c37bdbee49e91d743b0c",
          "pageSlug": "low-beamcasters-solutions"
        }
      },
      "articleStillDisplayRejection": {
        "status": "article-still-not-displayed",
        "reason": "Watermark overlaps the upper-right row of playable stones and tiles; the source still is retained but not displayed.",
        "sourceFrameFile": "/evidence/low-beamcasters-puzzle-027-source.webp",
        "sourceFrameSha256": "3416f519663a9a6799c89f572e35449ad9f9d6909fe75ba73f51c7456750b8bc"
      },
      "nativeTexture": {
        "entry": "data-pc/__3wcn_stonehenge.texture",
        "bytes": 784383,
        "sha256": "356bf035dc1f734105f0b644860a571c47c77740c730bde7c88463d33d904d8c",
        "dimensions": [
          2048,
          1152
        ],
        "formatId": 256
      },
      "nativeSource": {
        "entities": {
          "entry": "data-common/3wcn_stonehenge.entities",
          "bytes": 296027,
          "sha256": "ff835ca97a26e5e88dd887928b844a12edf14295fa60f67f28a60a6869677850"
        },
        "levelManifest": {
          "entry": "data-common/3wcn_stonehenge.level_manifest",
          "bytes": 5561,
          "sha256": "cff8ad5465ad0589caf2af1a38f22d630b9a6b901d049c87792d7d51503e1189"
        }
      },
      "setMemberships": [
        {
          "set": "underworld_heroes_and_promesst",
          "positions": [
            17
          ]
        }
      ],
      "overworldEntry": {
        "levelId": "3wcn_stonehenge",
        "entityId": 63029892,
        "position": {
          "x": -3.0,
          "y": 81.0,
          "z": -21.0
        },
        "unlockPrerequisiteIds": [],
        "unlockIsOrGate": false,
        "demoPhase": null,
        "towerFlags": null,
        "achievement": null,
        "currentlyBroken": false,
        "currentlyDisfavored": false,
        "sourceEntry": "data-common/overworld.entities",
        "setThemeGroup": "underworld_heroes_and_promesst"
      },
      "levelSet": "underworld_heroes_and_promesst",
      "levelSetPosition": 17,
      "candidateThemeGroup": "underworld_heroes_and_promesst",
      "inventoryStatusRetained": "overworld-entry-linked",
      "sourceId": "low-beamcasters-article",
      "videoSourceId": "remaining29-bilibili-part-56-encoding",
      "observationSourceId": "remaining29-selected-video-frame-observations",
      "articleCue": {
        "sourceId": "low-beamcasters-article",
        "section": "Puzzle 27",
        "articlePuzzleNumber": 27,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "remaining29-bilibili-part-56-encoding",
        "url": "https://www.bilibili.com/video/BV13FH96bE4m?p=56",
        "playlistPart": 56,
        "cid": 42789308516,
        "file": "/evidence/remaining29-selected-video-frames-2026-10-25/3wcn_stonehenge-p56-823s.jpg",
        "sha256": "7d0f43ccae11d924889852a2c754c55eb936eef56d918353ded1e178d9694f2e",
        "cue": "Selected source-video state; exact timing is stored in the observation evidence."
      },
      "instruction": [
        "Block dragons before the stone lands.",
        "在石头落下前挡住三条龙。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters Puzzle 27 selected view",
          "zh": "Low Beamcasters 谜题 27选定画面"
        },
        "opening": {
          "en": "Selected room detail.",
          "zh": "选定的房间局部画面。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/remaining29-selected-video-frames/3wcn_stonehenge-selected.svg",
            "width": 852,
            "height": 420,
            "articlePuzzleNumber": 27,
            "articleSection": "Puzzle 27",
            "sourceFrameFile": "/evidence/remaining29-selected-video-frames-2026-10-25/3wcn_stonehenge-p56-823s.jpg",
            "sourceFrameFormat": "image/jpeg",
            "sourceFrameSha256": "7d0f43ccae11d924889852a2c754c55eb936eef56d918353ded1e178d9694f2e",
            "sourceFrameBytes": 76166,
            "displaySourceFile": "/evidence/remaining29-selected-video-frames-2026-10-25/3wcn_stonehenge-p56-823s.jpg",
            "displayFrameFormat": "image/jpeg",
            "displayFrameSha256": "7d0f43ccae11d924889852a2c754c55eb936eef56d918353ded1e178d9694f2e",
            "imageSha256": "c430ef584cab5825424d840ac9de75b6324f533f45ed1ceab7c409a95d56ea84",
            "sourceTimeLabel": "Selected source-video view; exact timing is retained in the observation record.",
            "sourceId": "remaining29-bilibili-part-56-encoding",
            "observationSourceId": "remaining29-selected-video-frame-observations",
            "crop": {
              "x": 0,
              "y": 50,
              "width": 852,
              "height": 420,
              "excludedRects": []
            },
            "displayMasks": [],
            "markers": [
              {
                "type": "layout-reference",
                "color": "#31bfff",
                "center": {
                  "x": 429,
                  "y": 409
                },
                "radius": 16,
                "target": {
                  "en": "the middle Dragon below the three yellow tiles",
                  "zh": "三个黄色方格下方中间的巨龙"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters Puzzle 27 selected room detail; the ring marks the middle Dragon below the three yellow tiles.",
              "zh": "谜题 27选定的房间局部画面；蓝圈标出三个黄色方格下方中间的巨龙。"
            },
            "instruction": {
              "en": "Find the middle Dragon below the three yellow tiles.",
              "zh": "找到三个黄色方格下方中间的巨龙。"
            },
            "result": {
              "en": "The blue ring marks the middle Dragon below the three yellow tiles.",
              "zh": "蓝圈标出三个黄色方格下方中间的巨龙。"
            },
            "sourceCue": "Selected source-video frame; the precise PTS/time base is in the observation evidence.",
            "exactPtsKnown": true
          }
        ]
      }
    },
    {
      "levelId": "pat_on_the_back_v2",
      "articlePuzzleNumber": 31,
      "articleSection": "Puzzle 31",
      "articleGroup": "low-beamcasters",
      "articleReportedHint": {
        "en": "Shove yourself, leaving the marker behind.",
        "zh": "用推杆推动自己，把出口标记留在车上。",
        "basis": "article-reported-key-idea",
        "sourceId": "low-beamcasters-article",
        "sourceSection": "Puzzle 31"
      },
      "existingSourceHint": {
        "en": "Shove yourself, leaving the marker behind.",
        "zh": "用推杆推动自己，把出口标记留在车上。"
      },
      "articleIdentityEvidence": [
        {
          "evidenceFile": "low-beamcasters-candidate-classification-2026-10-23.json",
          "recordPath": "root.records[24]",
          "classification": "confirmed-shipped",
          "articlePuzzleNumber": 31,
          "source": {
            "sourceId": "low-beamcasters-article",
            "url": "https://sinkingstarwalkthrough.com/img/low/low-beamcasters/puzzle-31.webp",
            "section": "Puzzle 31",
            "file": "/evidence/low-beamcasters-puzzle-031-source.webp",
            "bytes": 74612,
            "sha256": "da02153a90386e31c939b035ebb20c87e8cc31f899dcdaa0591bb729b43b52d9",
            "dimensions": [
              960,
              540
            ],
            "articleHtmlSha256": "05de7893ea0eedba49f7b9d93a4e0bfd9be1027c5b40c37bdbee49e91d743b0c",
            "pageSlug": "low-beamcasters-solutions"
          }
        }
      ],
      "articleStillIdentity": {
        "source": {
          "sourceId": "low-beamcasters-article",
          "url": "https://sinkingstarwalkthrough.com/img/low/low-beamcasters/puzzle-31.webp",
          "section": "Puzzle 31",
          "file": "/evidence/low-beamcasters-puzzle-031-source.webp",
          "bytes": 74612,
          "sha256": "da02153a90386e31c939b035ebb20c87e8cc31f899dcdaa0591bb729b43b52d9",
          "dimensions": [
            960,
            540
          ],
          "articleHtmlSha256": "05de7893ea0eedba49f7b9d93a4e0bfd9be1027c5b40c37bdbee49e91d743b0c",
          "pageSlug": "low-beamcasters-solutions"
        }
      },
      "articleStillDisplayRejection": {
        "status": "article-still-not-displayed",
        "reason": "Watermark overlaps the upper-right bush/stone area of the playable repeating grid; the source still is retained but not displayed.",
        "sourceFrameFile": "/evidence/low-beamcasters-puzzle-031-source.webp",
        "sourceFrameSha256": "da02153a90386e31c939b035ebb20c87e8cc31f899dcdaa0591bb729b43b52d9"
      },
      "nativeTexture": {
        "entry": "data-pc/__pat_on_the_back_v2.texture",
        "bytes": 912037,
        "sha256": "b5d879a3ea72a7d8c07c2e50e3382c678c37686ffe4cc692baf19e1237b57c3d",
        "dimensions": [
          2048,
          1152
        ],
        "formatId": 256
      },
      "nativeSource": {
        "entities": {
          "entry": "data-common/pat_on_the_back_v2.entities",
          "bytes": 29061,
          "sha256": "b1d49530d9b6c326c711ea54733dc6fa6cb47e5f0f4758f3a04232e31679c7df"
        },
        "levelManifest": {
          "entry": "data-common/pat_on_the_back_v2.level_manifest",
          "bytes": 3969,
          "sha256": "6bde62beae6a0337f18523d0a17183d1bb9fed51eadf78f1e02de9b0ed5e9f3c"
        }
      },
      "setMemberships": [
        {
          "set": "underworld_heroes_and_promesst",
          "positions": [
            13
          ]
        }
      ],
      "overworldEntry": {
        "levelId": "pat_on_the_back_v2",
        "entityId": 95465636,
        "position": {
          "x": 18.0,
          "y": 70.0,
          "z": -24.0
        },
        "unlockPrerequisiteIds": [],
        "unlockIsOrGate": false,
        "demoPhase": null,
        "towerFlags": "HEROES|PROMESST|DOWNSTAIRS",
        "achievement": null,
        "currentlyBroken": false,
        "currentlyDisfavored": false,
        "sourceEntry": "data-common/overworld.entities",
        "setThemeGroup": "underworld_heroes_and_promesst"
      },
      "levelSet": "underworld_heroes_and_promesst",
      "levelSetPosition": 13,
      "candidateThemeGroup": "underworld_heroes_and_promesst",
      "inventoryStatusRetained": "overworld-entry-linked",
      "sourceId": "low-beamcasters-article",
      "videoSourceId": "remaining29-bilibili-part-56-encoding",
      "observationSourceId": "remaining29-selected-video-frame-observations",
      "articleCue": {
        "sourceId": "low-beamcasters-article",
        "section": "Puzzle 31",
        "articlePuzzleNumber": 31,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "remaining29-bilibili-part-56-encoding",
        "url": "https://www.bilibili.com/video/BV13FH96bE4m?p=56",
        "playlistPart": 56,
        "cid": 42789308516,
        "file": "/evidence/remaining29-selected-video-frames-2026-10-25/pat_on_the_back_v2-p56-1388s.jpg",
        "sha256": "5b18ee0c62cc805cfc0801d8d07fc8cc723ca3fccc1334ea15265bc86780957f",
        "cue": "Selected source-video state; exact timing is stored in the observation evidence."
      },
      "instruction": [
        "Shove yourself, leaving the marker behind.",
        "用推杆推动自己，把出口标记留在车上。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters Puzzle 31 selected view",
          "zh": "Low Beamcasters 谜题 31选定画面"
        },
        "opening": {
          "en": "Selected room detail.",
          "zh": "选定的房间局部画面。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/remaining29-selected-video-frames/pat_on_the_back_v2-selected.svg",
            "width": 852,
            "height": 420,
            "articlePuzzleNumber": 31,
            "articleSection": "Puzzle 31",
            "sourceFrameFile": "/evidence/remaining29-selected-video-frames-2026-10-25/pat_on_the_back_v2-p56-1388s.jpg",
            "sourceFrameFormat": "image/jpeg",
            "sourceFrameSha256": "5b18ee0c62cc805cfc0801d8d07fc8cc723ca3fccc1334ea15265bc86780957f",
            "sourceFrameBytes": 114706,
            "displaySourceFile": "/evidence/remaining29-selected-video-frames-2026-10-25/pat_on_the_back_v2-p56-1388s.jpg",
            "displayFrameFormat": "image/jpeg",
            "displayFrameSha256": "5b18ee0c62cc805cfc0801d8d07fc8cc723ca3fccc1334ea15265bc86780957f",
            "imageSha256": "1d429e62b6ce80791787ab7b1aca57a3e95bbbd8dd3bd8a993f08e7e54f98551",
            "sourceTimeLabel": "Selected source-video view; exact timing is retained in the observation record.",
            "sourceId": "remaining29-bilibili-part-56-encoding",
            "observationSourceId": "remaining29-selected-video-frame-observations",
            "crop": {
              "x": 0,
              "y": 50,
              "width": 852,
              "height": 420,
              "excludedRects": []
            },
            "displayMasks": [],
            "markers": [
              {
                "type": "layout-reference",
                "color": "#31bfff",
                "center": {
                  "x": 440,
                  "y": 262
                },
                "radius": 16,
                "target": {
                  "en": "the cart below the yellow exit",
                  "zh": "黄色出口下方的手推车"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters Puzzle 31 selected room detail; the ring marks the cart below the yellow exit.",
              "zh": "谜题 31选定的房间局部画面；蓝圈标出黄色出口下方的手推车。"
            },
            "instruction": {
              "en": "Find the cart below the yellow exit.",
              "zh": "找到黄色出口下方的手推车。"
            },
            "result": {
              "en": "The blue ring marks the cart below the yellow exit.",
              "zh": "蓝圈标出黄色出口下方的手推车。"
            },
            "sourceCue": "Selected source-video frame; the precise PTS/time base is in the observation evidence.",
            "exactPtsKnown": true
          }
        ]
      }
    },
    {
      "levelId": "zachtronics_xor",
      "articlePuzzleNumber": 43,
      "articleSection": "Puzzle 43",
      "articleGroup": "low-beamcasters",
      "articleReportedHint": {
        "en": "Avoid paired crystals in the same column.",
        "zh": "避免同列出现两颗水晶。",
        "basis": "article-reported-key-idea",
        "sourceId": "low-beamcasters-article",
        "sourceSection": "Puzzle 43"
      },
      "existingSourceHint": {
        "en": "Avoid paired crystals in the same column.",
        "zh": "避免同列出现两颗水晶。"
      },
      "articleIdentityEvidence": [
        {
          "evidenceFile": "low-beamcasters-candidate-classification-2026-10-23.json",
          "recordPath": "root.records[36]",
          "classification": "confirmed-shipped",
          "articlePuzzleNumber": 43,
          "source": {
            "sourceId": "low-beamcasters-article",
            "url": "https://sinkingstarwalkthrough.com/img/low/low-beamcasters/puzzle-43.webp",
            "section": "Puzzle 43",
            "file": "/evidence/low-beamcasters-puzzle-043-source.webp",
            "bytes": 52828,
            "sha256": "107d97d07fc00c645b1df2d219a10b4483d48d986225e8b69fcf3b2733559536",
            "dimensions": [
              960,
              540
            ],
            "articleHtmlSha256": "05de7893ea0eedba49f7b9d93a4e0bfd9be1027c5b40c37bdbee49e91d743b0c",
            "pageSlug": "low-beamcasters-solutions"
          }
        }
      ],
      "articleStillIdentity": {
        "source": {
          "sourceId": "low-beamcasters-article",
          "url": "https://sinkingstarwalkthrough.com/img/low/low-beamcasters/puzzle-43.webp",
          "section": "Puzzle 43",
          "file": "/evidence/low-beamcasters-puzzle-043-source.webp",
          "bytes": 52828,
          "sha256": "107d97d07fc00c645b1df2d219a10b4483d48d986225e8b69fcf3b2733559536",
          "dimensions": [
            960,
            540
          ],
          "articleHtmlSha256": "05de7893ea0eedba49f7b9d93a4e0bfd9be1027c5b40c37bdbee49e91d743b0c",
          "pageSlug": "low-beamcasters-solutions"
        }
      },
      "articleStillDisplayRejection": {
        "status": "article-still-not-displayed",
        "reason": "An inspector tooltip covers the lower-right playable red blocks/tiles; the source still is retained but not displayed.",
        "sourceFrameFile": "/evidence/low-beamcasters-puzzle-043-source.webp",
        "sourceFrameSha256": "107d97d07fc00c645b1df2d219a10b4483d48d986225e8b69fcf3b2733559536"
      },
      "nativeTexture": {
        "entry": "data-pc/__zachtronics_xor.texture",
        "bytes": 720149,
        "sha256": "d0cddfbe6147fb079381a276d056884d7def0a1a4e153dd9f24050ee768d40a6",
        "dimensions": [
          2048,
          1152
        ],
        "formatId": 256
      },
      "nativeSource": {
        "entities": {
          "entry": "data-common/zachtronics_xor.entities",
          "bytes": 576202,
          "sha256": "dda0db250c4586d7296e2784750c89f5a8c0f62838b23af536cf604dab5cd89f"
        },
        "levelManifest": {
          "entry": "data-common/zachtronics_xor.level_manifest",
          "bytes": 7853,
          "sha256": "bf1e18fe2ac7336aa068583c086569de04f168271a789bdf14cc180fedc65e04"
        }
      },
      "setMemberships": [
        {
          "set": "drafts_arted",
          "positions": [
            125
          ]
        },
        {
          "set": "zachtronics",
          "positions": [
            3
          ]
        }
      ],
      "overworldEntry": {
        "levelId": "zachtronics_xor",
        "entityId": 62916335,
        "position": {
          "x": 4.0,
          "y": 52.0,
          "z": -21.0
        },
        "unlockPrerequisiteIds": [
          62916333
        ],
        "unlockIsOrGate": false,
        "demoPhase": null,
        "towerFlags": null,
        "achievement": null,
        "currentlyBroken": false,
        "currentlyDisfavored": false,
        "sourceEntry": "data-common/overworld.entities",
        "setThemeGroup": "zachtronics"
      },
      "levelSet": "zachtronics",
      "levelSetPosition": 3,
      "candidateThemeGroup": "zachtronics",
      "inventoryStatusRetained": "overworld-entry-linked",
      "sourceId": "low-beamcasters-article",
      "videoSourceId": "remaining29-bilibili-part-57-encoding",
      "observationSourceId": "remaining29-selected-video-frame-observations",
      "articleCue": {
        "sourceId": "low-beamcasters-article",
        "section": "Puzzle 43",
        "articlePuzzleNumber": 43,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "remaining29-bilibili-part-57-encoding",
        "url": "https://www.bilibili.com/video/BV13FH96bE4m?p=57",
        "playlistPart": 57,
        "cid": 42792583621,
        "file": "/evidence/remaining29-selected-video-frames-2026-10-25/zachtronics_xor-p57-1388s.jpg",
        "sha256": "a71c2943f5727e36a0aee7cd45dc77e975236d87552787f05033bf1d6cec295b",
        "cue": "Selected source-video state; exact timing is stored in the observation evidence."
      },
      "instruction": [
        "Avoid paired crystals in the same column.",
        "避免同列出现两颗水晶。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters Puzzle 43 selected view",
          "zh": "Low Beamcasters 谜题 43选定画面"
        },
        "opening": {
          "en": "Selected room detail.",
          "zh": "选定的房间局部画面。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/remaining29-selected-video-frames/zachtronics_xor-selected.svg",
            "width": 852,
            "height": 414,
            "articlePuzzleNumber": 43,
            "articleSection": "Puzzle 43",
            "sourceFrameFile": "/evidence/remaining29-selected-video-frames-2026-10-25/zachtronics_xor-p57-1388s.jpg",
            "sourceFrameFormat": "image/jpeg",
            "sourceFrameSha256": "a71c2943f5727e36a0aee7cd45dc77e975236d87552787f05033bf1d6cec295b",
            "sourceFrameBytes": 88663,
            "displaySourceFile": "/evidence/remaining29-selected-video-frames-2026-10-25/zachtronics_xor-p57-1388s.jpg",
            "displayFrameFormat": "image/jpeg",
            "displayFrameSha256": "a71c2943f5727e36a0aee7cd45dc77e975236d87552787f05033bf1d6cec295b",
            "imageSha256": "381710ccadbce27301b597da30ce52f4c50867320712911f76f5831a5cd534ff",
            "sourceTimeLabel": "Selected source-video view; exact timing is retained in the observation record.",
            "sourceId": "remaining29-bilibili-part-57-encoding",
            "observationSourceId": "remaining29-selected-video-frame-observations",
            "crop": {
              "x": 0,
              "y": 50,
              "width": 852,
              "height": 414,
              "excludedRects": []
            },
            "displayMasks": [],
            "markers": [
              {
                "type": "layout-reference",
                "color": "#31bfff",
                "center": {
                  "x": 458,
                  "y": 87
                },
                "radius": 16,
                "target": {
                  "en": "the pink crystal in the upper row",
                  "zh": "最上面一排中的粉色水晶"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters Puzzle 43 selected room detail; the ring marks the pink crystal in the upper row.",
              "zh": "谜题 43选定的房间局部画面；蓝圈标出最上面一排中的粉色水晶。"
            },
            "instruction": {
              "en": "Find the pink crystal in the upper row.",
              "zh": "找到最上面一排中的粉色水晶。"
            },
            "result": {
              "en": "The blue ring marks the pink crystal in the upper row.",
              "zh": "蓝圈标出最上面一排中的粉色水晶。"
            },
            "sourceCue": "Selected source-video frame; the precise PTS/time base is in the observation evidence.",
            "exactPtsKnown": true
          }
        ]
      }
    },
    {
      "levelId": "boot_cycle_warrior",
      "articlePuzzleNumber": 47,
      "articleSection": "Puzzle 47",
      "articleGroup": "low-beamcasters",
      "articleReportedHint": {
        "en": "Keep the white beam lit while moving.",
        "zh": "移动过程中保持白光连通。",
        "basis": "article-reported-key-idea",
        "sourceId": "low-beamcasters-article",
        "sourceSection": "Puzzle 47"
      },
      "existingSourceHint": {
        "en": "Keep the white beam lit while moving.",
        "zh": "移动过程中保持白光连通。"
      },
      "articleIdentityEvidence": [
        {
          "evidenceFile": "low-beamcasters-candidate-classification-2026-10-23.json",
          "recordPath": "root.records[40]",
          "classification": "confirmed-shipped",
          "articlePuzzleNumber": 47,
          "source": {
            "sourceId": "low-beamcasters-article",
            "url": "https://sinkingstarwalkthrough.com/img/low/low-beamcasters/puzzle-47.webp",
            "section": "Puzzle 47",
            "file": "/evidence/low-beamcasters-puzzle-047-source.webp",
            "bytes": 59302,
            "sha256": "a6d7162f21b9c4b3fc409f41f81e58f5cfba959132a25598f100d29eae98847e",
            "dimensions": [
              960,
              540
            ],
            "articleHtmlSha256": "05de7893ea0eedba49f7b9d93a4e0bfd9be1027c5b40c37bdbee49e91d743b0c",
            "pageSlug": "low-beamcasters-solutions"
          }
        }
      ],
      "articleStillIdentity": {
        "source": {
          "sourceId": "low-beamcasters-article",
          "url": "https://sinkingstarwalkthrough.com/img/low/low-beamcasters/puzzle-47.webp",
          "section": "Puzzle 47",
          "file": "/evidence/low-beamcasters-puzzle-047-source.webp",
          "bytes": 59302,
          "sha256": "a6d7162f21b9c4b3fc409f41f81e58f5cfba959132a25598f100d29eae98847e",
          "dimensions": [
            960,
            540
          ],
          "articleHtmlSha256": "05de7893ea0eedba49f7b9d93a4e0bfd9be1027c5b40c37bdbee49e91d743b0c",
          "pageSlug": "low-beamcasters-solutions"
        }
      },
      "articleStillDisplayRejection": {
        "status": "article-still-not-displayed",
        "reason": "The creator mark overlaps pink crystals and tiles in the repeated board; the source still is retained but not displayed.",
        "sourceFrameFile": "/evidence/low-beamcasters-puzzle-047-source.webp",
        "sourceFrameSha256": "a6d7162f21b9c4b3fc409f41f81e58f5cfba959132a25598f100d29eae98847e"
      },
      "nativeTexture": {
        "entry": "data-pc/__boot_cycle_warrior.texture",
        "bytes": 771416,
        "sha256": "3451ea1b33700b239c63f02ab910408c1e4fc2a7d92cf1ddcb3f552270d88cec",
        "dimensions": [
          2048,
          1152
        ],
        "formatId": 256
      },
      "nativeSource": {
        "entities": {
          "entry": "data-common/boot_cycle_warrior.entities",
          "bytes": 202315,
          "sha256": "c4e610e1140d342d0a2f1b70582359ff6033231c79de661f6a6ba699e85dd580"
        },
        "levelManifest": {
          "entry": "data-common/boot_cycle_warrior.level_manifest",
          "bytes": 4388,
          "sha256": "89c364c09a4a55f5bf34e07607c05c517f9e0c9187ffd088b6208ccb650f4e4c"
        }
      },
      "setMemberships": [
        {
          "set": "drafts_arted",
          "positions": [
            300
          ]
        },
        {
          "set": "gems",
          "positions": [
            7
          ]
        }
      ],
      "overworldEntry": {
        "levelId": "boot_cycle_warrior",
        "entityId": 115347697,
        "position": {
          "x": 42.0,
          "y": 51.0,
          "z": -21.0
        },
        "unlockPrerequisiteIds": [
          90195802
        ],
        "unlockIsOrGate": false,
        "demoPhase": null,
        "towerFlags": "HEROES|PROMESST|DOWNSTAIRS",
        "achievement": null,
        "currentlyBroken": false,
        "currentlyDisfavored": false,
        "sourceEntry": "data-common/overworld.entities",
        "setThemeGroup": "gems"
      },
      "levelSet": "gems",
      "levelSetPosition": 7,
      "candidateThemeGroup": "gems",
      "inventoryStatusRetained": "overworld-entry-linked",
      "sourceId": "low-beamcasters-article",
      "videoSourceId": "remaining29-bilibili-part-58-encoding",
      "observationSourceId": "remaining29-selected-video-frame-observations",
      "articleCue": {
        "sourceId": "low-beamcasters-article",
        "section": "Puzzle 47",
        "articlePuzzleNumber": 47,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "remaining29-bilibili-part-58-encoding",
        "url": "https://www.bilibili.com/video/BV13FH96bE4m?p=58",
        "playlistPart": 58,
        "cid": 42799402309,
        "file": "/evidence/remaining29-selected-video-frames-2026-10-25/boot_cycle_warrior-p58-219s.jpg",
        "sha256": "0735e5bd5df3a3920003c43cc17f07d1599a276870b00828a774177b0f0051d8",
        "cue": "Selected source-video state; exact timing is stored in the observation evidence."
      },
      "instruction": [
        "Keep the white beam lit while moving.",
        "移动过程中保持白光连通。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters Puzzle 47 selected view",
          "zh": "Low Beamcasters 谜题 47选定画面"
        },
        "opening": {
          "en": "Selected room detail.",
          "zh": "选定的房间局部画面。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/remaining29-selected-video-frames/boot_cycle_warrior-selected.svg",
            "width": 852,
            "height": 420,
            "articlePuzzleNumber": 47,
            "articleSection": "Puzzle 47",
            "sourceFrameFile": "/evidence/remaining29-selected-video-frames-2026-10-25/boot_cycle_warrior-p58-219s.jpg",
            "sourceFrameFormat": "image/jpeg",
            "sourceFrameSha256": "0735e5bd5df3a3920003c43cc17f07d1599a276870b00828a774177b0f0051d8",
            "sourceFrameBytes": 84282,
            "displaySourceFile": "/evidence/remaining29-selected-video-frames-2026-10-25/boot_cycle_warrior-p58-219s.jpg",
            "displayFrameFormat": "image/jpeg",
            "displayFrameSha256": "0735e5bd5df3a3920003c43cc17f07d1599a276870b00828a774177b0f0051d8",
            "imageSha256": "7699e3e3d58cc37ae1ac9c3f3220e8217b4766b69076442b685456879bd2b035",
            "sourceTimeLabel": "Selected source-video view; exact timing is retained in the observation record.",
            "sourceId": "remaining29-bilibili-part-58-encoding",
            "observationSourceId": "remaining29-selected-video-frame-observations",
            "crop": {
              "x": 0,
              "y": 50,
              "width": 852,
              "height": 420,
              "excludedRects": []
            },
            "displayMasks": [],
            "markers": [
              {
                "type": "layout-reference",
                "color": "#31bfff",
                "center": {
                  "x": 425,
                  "y": 214
                },
                "radius": 16,
                "target": {
                  "en": "the cart above the central four-pronged tile",
                  "zh": "中央四角地砖上方的手推车"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters Puzzle 47 selected room detail; the ring marks the cart above the central four-pronged tile.",
              "zh": "谜题 47选定的房间局部画面；蓝圈标出中央四角地砖上方的手推车。"
            },
            "instruction": {
              "en": "Find the cart above the central four-pronged tile.",
              "zh": "找到中央四角地砖上方的手推车。"
            },
            "result": {
              "en": "The blue ring marks the cart above the central four-pronged tile.",
              "zh": "蓝圈标出中央四角地砖上方的手推车。"
            },
            "sourceCue": "Selected source-video frame; the precise PTS/time base is in the observation evidence.",
            "exactPtsKnown": true
          }
        ]
      }
    },
    {
      "levelId": "ortho3",
      "articlePuzzleNumber": 68,
      "articleSection": "Puzzle 68",
      "articleGroup": "low-beamcasters",
      "articleReportedHint": {
        "en": "Use the clockwise beam to change levels.",
        "zh": "借顺时针旋转的光束切换高度。",
        "basis": "article-reported-key-idea",
        "sourceId": "low-beamcasters-article",
        "sourceSection": "Puzzle 68"
      },
      "existingSourceHint": {
        "en": "Use the clockwise beam to change levels.",
        "zh": "借顺时针旋转的光束切换高度。"
      },
      "articleIdentityEvidence": [
        {
          "evidenceFile": "low-beamcasters-candidate-classification-2026-10-23.json",
          "recordPath": "root.records[61]",
          "classification": "confirmed-shipped",
          "articlePuzzleNumber": 68,
          "source": {
            "sourceId": "low-beamcasters-article",
            "url": "https://sinkingstarwalkthrough.com/img/low/low-beamcasters/puzzle-68.webp",
            "section": "Puzzle 68",
            "file": "/evidence/low-beamcasters-puzzle-068-source.webp",
            "bytes": 65090,
            "sha256": "9b9fa121176a9c87059af357aece9ae24175925251c9a8503268326df8298318",
            "dimensions": [
              960,
              540
            ],
            "articleHtmlSha256": "05de7893ea0eedba49f7b9d93a4e0bfd9be1027c5b40c37bdbee49e91d743b0c",
            "pageSlug": "low-beamcasters-solutions"
          }
        }
      ],
      "articleStillIdentity": {
        "source": {
          "sourceId": "low-beamcasters-article",
          "url": "https://sinkingstarwalkthrough.com/img/low/low-beamcasters/puzzle-68.webp",
          "section": "Puzzle 68",
          "file": "/evidence/low-beamcasters-puzzle-068-source.webp",
          "bytes": 65090,
          "sha256": "9b9fa121176a9c87059af357aece9ae24175925251c9a8503268326df8298318",
          "dimensions": [
            960,
            540
          ],
          "articleHtmlSha256": "05de7893ea0eedba49f7b9d93a4e0bfd9be1027c5b40c37bdbee49e91d743b0c",
          "pageSlug": "low-beamcasters-solutions"
        }
      },
      "articleStillDisplayRejection": {
        "status": "article-still-not-displayed",
        "reason": "The creator mark overlaps the repeated green boulder row; the source still is retained but not displayed.",
        "sourceFrameFile": "/evidence/low-beamcasters-puzzle-068-source.webp",
        "sourceFrameSha256": "9b9fa121176a9c87059af357aece9ae24175925251c9a8503268326df8298318"
      },
      "nativeTexture": {
        "entry": "data-pc/__ortho3.texture",
        "bytes": 791813,
        "sha256": "5b7cc8fb408a8a277514a4986a529ff21932ff277d790088b04945bcfcc7b2f9",
        "dimensions": [
          2048,
          1152
        ],
        "formatId": 256
      },
      "nativeSource": {
        "entities": {
          "entry": "data-common/ortho3.entities",
          "bytes": 248104,
          "sha256": "49ea1c180a1202bbc2c48940a5a8a4d32b952c1232a49c7388835c881b79d1d7"
        },
        "levelManifest": {
          "entry": "data-common/ortho3.level_manifest",
          "bytes": 4770,
          "sha256": "6c63217d04f3deb45ba665b39b1f9b49d68c9df755af4be767aec2886a3d6667"
        }
      },
      "setMemberships": [
        {
          "set": "lily_highway_stones_and_promesst",
          "positions": [
            9
          ]
        }
      ],
      "overworldEntry": {
        "levelId": "ortho3",
        "entityId": 58730477,
        "position": {
          "x": 54.0,
          "y": 16.0,
          "z": -20.0
        },
        "unlockPrerequisiteIds": [
          58730475
        ],
        "unlockIsOrGate": false,
        "demoPhase": null,
        "towerFlags": "SKIPPING|PROMESST|DOWNSTAIRS",
        "achievement": null,
        "currentlyBroken": false,
        "currentlyDisfavored": false,
        "sourceEntry": "data-common/overworld.entities",
        "setThemeGroup": "lily_highway_stones_and_promesst"
      },
      "levelSet": "lily_highway_stones_and_promesst",
      "levelSetPosition": 9,
      "candidateThemeGroup": "lily_highway_stones_and_promesst",
      "inventoryStatusRetained": "overworld-entry-linked",
      "sourceId": "low-beamcasters-article",
      "videoSourceId": "remaining29-bilibili-part-58-encoding",
      "observationSourceId": "remaining29-selected-video-frame-observations",
      "articleCue": {
        "sourceId": "low-beamcasters-article",
        "section": "Puzzle 68",
        "articlePuzzleNumber": 68,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "remaining29-bilibili-part-58-encoding",
        "url": "https://www.bilibili.com/video/BV13FH96bE4m?p=58",
        "playlistPart": 58,
        "cid": 42799402309,
        "file": "/evidence/remaining29-selected-video-frames-2026-10-25/ortho3-p58-3074s.jpg",
        "sha256": "c9211466356812757b5a21f0149476796f7e8ae922810c1d02f17caf811a15e6",
        "cue": "Selected source-video state; exact timing is stored in the observation evidence."
      },
      "instruction": [
        "Use the clockwise beam to change levels.",
        "借顺时针旋转的光束切换高度。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters Puzzle 68 selected view",
          "zh": "Low Beamcasters 谜题 68选定画面"
        },
        "opening": {
          "en": "Selected room detail.",
          "zh": "选定的房间局部画面。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/remaining29-selected-video-frames/ortho3-selected.svg",
            "width": 852,
            "height": 420,
            "articlePuzzleNumber": 68,
            "articleSection": "Puzzle 68",
            "sourceFrameFile": "/evidence/remaining29-selected-video-frames-2026-10-25/ortho3-p58-3074s.jpg",
            "sourceFrameFormat": "image/jpeg",
            "sourceFrameSha256": "c9211466356812757b5a21f0149476796f7e8ae922810c1d02f17caf811a15e6",
            "sourceFrameBytes": 103478,
            "displaySourceFile": "/evidence/remaining29-selected-video-frames-2026-10-25/ortho3-p58-3074s.jpg",
            "displayFrameFormat": "image/jpeg",
            "displayFrameSha256": "c9211466356812757b5a21f0149476796f7e8ae922810c1d02f17caf811a15e6",
            "imageSha256": "d13f424b7ea4f2cd28ea9a7b4f830b3cc7b45d31d8189bdfdfc978ed4b053c71",
            "sourceTimeLabel": "Selected source-video view; exact timing is retained in the observation record.",
            "sourceId": "remaining29-bilibili-part-58-encoding",
            "observationSourceId": "remaining29-selected-video-frame-observations",
            "crop": {
              "x": 0,
              "y": 50,
              "width": 852,
              "height": 420,
              "excludedRects": []
            },
            "displayMasks": [],
            "markers": [
              {
                "type": "layout-reference",
                "color": "#31bfff",
                "center": {
                  "x": 523,
                  "y": 89
                },
                "radius": 16,
                "target": {
                  "en": "the blue gem above the raised exit platform",
                  "zh": "抬高的出口平台上方的蓝色宝石"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters Puzzle 68 selected room detail; the ring marks the blue gem above the raised exit platform.",
              "zh": "谜题 68选定的房间局部画面；蓝圈标出抬高的出口平台上方的蓝色宝石。"
            },
            "instruction": {
              "en": "Find the blue gem above the raised exit platform.",
              "zh": "找到抬高的出口平台上方的蓝色宝石。"
            },
            "result": {
              "en": "The blue ring marks the blue gem above the raised exit platform.",
              "zh": "蓝圈标出抬高的出口平台上方的蓝色宝石。"
            },
            "sourceCue": "Selected source-video frame; the precise PTS/time base is in the observation evidence.",
            "exactPtsKnown": true
          }
        ]
      }
    },
    {
      "levelId": "chain_reaction",
      "articlePuzzleNumber": 71,
      "articleSection": "Puzzle 71",
      "articleGroup": "low-beamcasters",
      "articleReportedHint": {
        "en": "Let orange light launch stones from pads.",
        "zh": "用橙光让睡莲平台发射跳石。",
        "basis": "article-reported-key-idea",
        "sourceId": "low-beamcasters-article",
        "sourceSection": "Puzzle 71"
      },
      "existingSourceHint": {
        "en": "Let orange light launch stones from pads.",
        "zh": "用橙光让睡莲平台发射跳石。"
      },
      "articleIdentityEvidence": [
        {
          "evidenceFile": "low-beamcasters-candidate-classification-2026-10-23.json",
          "recordPath": "root.records[64]",
          "classification": "confirmed-shipped",
          "articlePuzzleNumber": 71,
          "source": {
            "sourceId": "low-beamcasters-article",
            "url": "https://sinkingstarwalkthrough.com/img/low/low-beamcasters/puzzle-71.webp",
            "section": "Puzzle 71",
            "file": "/evidence/low-beamcasters-puzzle-071-source.webp",
            "bytes": 36094,
            "sha256": "45cd3dec8e0a4051f6af918a5717d06cbfd3633ba9efb2735b03eb69fe644ab8",
            "dimensions": [
              960,
              540
            ],
            "articleHtmlSha256": "05de7893ea0eedba49f7b9d93a4e0bfd9be1027c5b40c37bdbee49e91d743b0c",
            "pageSlug": "low-beamcasters-solutions"
          }
        }
      ],
      "articleStillIdentity": {
        "source": {
          "sourceId": "low-beamcasters-article",
          "url": "https://sinkingstarwalkthrough.com/img/low/low-beamcasters/puzzle-71.webp",
          "section": "Puzzle 71",
          "file": "/evidence/low-beamcasters-puzzle-071-source.webp",
          "bytes": 36094,
          "sha256": "45cd3dec8e0a4051f6af918a5717d06cbfd3633ba9efb2735b03eb69fe644ab8",
          "dimensions": [
            960,
            540
          ],
          "articleHtmlSha256": "05de7893ea0eedba49f7b9d93a4e0bfd9be1027c5b40c37bdbee49e91d743b0c",
          "pageSlug": "low-beamcasters-solutions"
        }
      },
      "articleStillDisplayRejection": {
        "status": "article-still-not-displayed",
        "reason": "The watermark covers the upper-right cyan button; the source still is retained but not displayed.",
        "sourceFrameFile": "/evidence/low-beamcasters-puzzle-071-source.webp",
        "sourceFrameSha256": "45cd3dec8e0a4051f6af918a5717d06cbfd3633ba9efb2735b03eb69fe644ab8"
      },
      "nativeTexture": {
        "entry": "data-pc/__chain_reaction.texture",
        "bytes": 679967,
        "sha256": "ad574d240af9a7a2a5cf9286b349d4d7ac35c37a7150e4dd75a76a3b4676b909",
        "dimensions": [
          2048,
          1152
        ],
        "formatId": 256
      },
      "nativeSource": {
        "entities": {
          "entry": "data-common/chain_reaction.entities",
          "bytes": 281836,
          "sha256": "00878c5aa3a2128d1a7eb8516b23228719e7c550dc6ff27a8635f12a7683d864"
        },
        "levelManifest": {
          "entry": "data-common/chain_reaction.level_manifest",
          "bytes": 4930,
          "sha256": "94e065bbe197a7bb499f35d6072831f79e17244d79e7949f77364f32e70d2878"
        }
      },
      "setMemberships": [
        {
          "set": "drafts_arted",
          "positions": [
            278
          ]
        },
        {
          "set": "underworld_skipping_and_promesst",
          "positions": [
            14
          ]
        }
      ],
      "overworldEntry": {
        "levelId": "chain_reaction",
        "entityId": 62964051,
        "position": {
          "x": -3.0,
          "y": 32.0,
          "z": -21.0
        },
        "unlockPrerequisiteIds": [],
        "unlockIsOrGate": false,
        "demoPhase": null,
        "towerFlags": "SKIPPING|PROMESST|DOWNSTAIRS",
        "achievement": null,
        "currentlyBroken": false,
        "currentlyDisfavored": false,
        "sourceEntry": "data-common/overworld.entities",
        "setThemeGroup": "underworld_skipping_and_promesst"
      },
      "levelSet": "underworld_skipping_and_promesst",
      "levelSetPosition": 14,
      "candidateThemeGroup": "underworld_skipping_and_promesst",
      "inventoryStatusRetained": "overworld-entry-linked",
      "sourceId": "low-beamcasters-article",
      "videoSourceId": "remaining29-bilibili-part-59-encoding",
      "observationSourceId": "remaining29-selected-video-frame-observations",
      "articleCue": {
        "sourceId": "low-beamcasters-article",
        "section": "Puzzle 71",
        "articlePuzzleNumber": 71,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "remaining29-bilibili-part-59-encoding",
        "url": "https://www.bilibili.com/video/BV13FH96bE4m?p=59",
        "playlistPart": 59,
        "cid": 42801303276,
        "file": "/evidence/remaining29-selected-video-frames-2026-10-25/chain_reaction-p59-327s.jpg",
        "sha256": "658391e60553cb3948ffb9fb705e2d2577b4f406e2ee9a30656479432617ad4f",
        "cue": "Selected source-video state; exact timing is stored in the observation evidence."
      },
      "instruction": [
        "Let orange light launch stones from pads.",
        "用橙光让睡莲平台发射跳石。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters Puzzle 71 selected view",
          "zh": "Low Beamcasters 谜题 71选定画面"
        },
        "opening": {
          "en": "Selected room detail.",
          "zh": "选定的房间局部画面。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/remaining29-selected-video-frames/chain_reaction-selected.svg",
            "width": 852,
            "height": 420,
            "articlePuzzleNumber": 71,
            "articleSection": "Puzzle 71",
            "sourceFrameFile": "/evidence/remaining29-selected-video-frames-2026-10-25/chain_reaction-p59-327s.jpg",
            "sourceFrameFormat": "image/jpeg",
            "sourceFrameSha256": "658391e60553cb3948ffb9fb705e2d2577b4f406e2ee9a30656479432617ad4f",
            "sourceFrameBytes": 51381,
            "displaySourceFile": "/evidence/remaining29-selected-video-frames-2026-10-25/chain_reaction-p59-327s.jpg",
            "displayFrameFormat": "image/jpeg",
            "displayFrameSha256": "658391e60553cb3948ffb9fb705e2d2577b4f406e2ee9a30656479432617ad4f",
            "imageSha256": "d33766e472644ab9a8bb760f677d3355e35850ae7e89328a30ad2dd901a5fec9",
            "sourceTimeLabel": "Selected source-video view; exact timing is retained in the observation record.",
            "sourceId": "remaining29-bilibili-part-59-encoding",
            "observationSourceId": "remaining29-selected-video-frame-observations",
            "crop": {
              "x": 0,
              "y": 50,
              "width": 852,
              "height": 420,
              "excludedRects": []
            },
            "displayMasks": [],
            "markers": [
              {
                "type": "layout-reference",
                "color": "#31bfff",
                "center": {
                  "x": 276,
                  "y": 268
                },
                "radius": 16,
                "target": {
                  "en": "the blue gem between the yellow beamcasters",
                  "zh": "黄色光束发射器之间的蓝色宝石"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters Puzzle 71 selected room detail; the ring marks the blue gem between the yellow beamcasters.",
              "zh": "谜题 71选定的房间局部画面；蓝圈标出黄色光束发射器之间的蓝色宝石。"
            },
            "instruction": {
              "en": "Find the blue gem between the yellow beamcasters.",
              "zh": "找到黄色光束发射器之间的蓝色宝石。"
            },
            "result": {
              "en": "The blue ring marks the blue gem between the yellow beamcasters.",
              "zh": "蓝圈标出黄色光束发射器之间的蓝色宝石。"
            },
            "sourceCue": "Selected source-video frame; the precise PTS/time base is in the observation evidence.",
            "exactPtsKnown": true
          }
        ]
      }
    },
    {
      "levelId": "wrap_music",
      "articlePuzzleNumber": 73,
      "articleSection": "Puzzle 73",
      "articleGroup": "low-beamcasters",
      "articleReportedHint": {
        "en": "Surround Bard with skimming stones.",
        "zh": "用掠水跳石围住吟游诗人。",
        "basis": "article-reported-key-idea",
        "sourceId": "low-beamcasters-article",
        "sourceSection": "Puzzle 73"
      },
      "existingSourceHint": {
        "en": "Surround Bard with skimming stones.",
        "zh": "用掠水跳石围住吟游诗人。"
      },
      "articleIdentityEvidence": [
        {
          "evidenceFile": "low-beamcasters-candidate-classification-2026-10-23.json",
          "recordPath": "root.records[66]",
          "classification": "confirmed-shipped",
          "articlePuzzleNumber": 73,
          "source": {
            "sourceId": "low-beamcasters-article",
            "url": "https://sinkingstarwalkthrough.com/img/low/low-beamcasters/puzzle-73.webp",
            "section": "Puzzle 73",
            "file": "/evidence/low-beamcasters-puzzle-073-source.webp",
            "bytes": 43356,
            "sha256": "11b04c20813202fa317bd493ae081b414e07995867e243f0870e7c0818412aea",
            "dimensions": [
              960,
              540
            ],
            "articleHtmlSha256": "05de7893ea0eedba49f7b9d93a4e0bfd9be1027c5b40c37bdbee49e91d743b0c",
            "pageSlug": "low-beamcasters-solutions"
          }
        }
      ],
      "articleStillIdentity": {
        "source": {
          "sourceId": "low-beamcasters-article",
          "url": "https://sinkingstarwalkthrough.com/img/low/low-beamcasters/puzzle-73.webp",
          "section": "Puzzle 73",
          "file": "/evidence/low-beamcasters-puzzle-073-source.webp",
          "bytes": 43356,
          "sha256": "11b04c20813202fa317bd493ae081b414e07995867e243f0870e7c0818412aea",
          "dimensions": [
            960,
            540
          ],
          "articleHtmlSha256": "05de7893ea0eedba49f7b9d93a4e0bfd9be1027c5b40c37bdbee49e91d743b0c",
          "pageSlug": "low-beamcasters-solutions"
        }
      },
      "articleStillDisplayRejection": {
        "status": "article-still-not-displayed",
        "reason": "The watermark covers the top row of playable yellow tiles; the source still is retained but not displayed.",
        "sourceFrameFile": "/evidence/low-beamcasters-puzzle-073-source.webp",
        "sourceFrameSha256": "11b04c20813202fa317bd493ae081b414e07995867e243f0870e7c0818412aea"
      },
      "nativeTexture": {
        "entry": "data-pc/__wrap_music.texture",
        "bytes": 594979,
        "sha256": "6aef4f44455cf2f86afcd11a1e4785061e184c8087f03f7bfa8e9a305d7e49ad",
        "dimensions": [
          2048,
          1152
        ],
        "formatId": 256
      },
      "nativeSource": {
        "entities": {
          "entry": "data-common/wrap_music.entities",
          "bytes": 86845,
          "sha256": "a7572d32731961a647ad3d3083084ad794a173c503b1cc5ad19321ef9df66250"
        },
        "levelManifest": {
          "entry": "data-common/wrap_music.level_manifest",
          "bytes": 4153,
          "sha256": "b4fbcb65d67247c92d1ad4e67551579fc492abce8f06c1707eb0c97a8616e359"
        }
      },
      "setMemberships": [
        {
          "set": "lily_highway_heroes_and_stones",
          "positions": [
            2
          ]
        }
      ],
      "overworldEntry": {
        "levelId": "wrap_music",
        "entityId": 95453638,
        "position": {
          "x": 21.0,
          "y": 6.0,
          "z": -21.0
        },
        "unlockPrerequisiteIds": [
          95453630
        ],
        "unlockIsOrGate": false,
        "demoPhase": null,
        "towerFlags": null,
        "achievement": null,
        "currentlyBroken": false,
        "currentlyDisfavored": false,
        "sourceEntry": "data-common/overworld.entities",
        "setThemeGroup": "lily_highway_heroes_and_stones"
      },
      "levelSet": "lily_highway_heroes_and_stones",
      "levelSetPosition": 2,
      "candidateThemeGroup": "lily_highway_heroes_and_stones",
      "inventoryStatusRetained": "overworld-entry-linked",
      "sourceId": "low-beamcasters-article",
      "videoSourceId": "remaining29-bilibili-part-59-encoding",
      "observationSourceId": "remaining29-selected-video-frame-observations",
      "articleCue": {
        "sourceId": "low-beamcasters-article",
        "section": "Puzzle 73",
        "articlePuzzleNumber": 73,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "remaining29-bilibili-part-59-encoding",
        "url": "https://www.bilibili.com/video/BV13FH96bE4m?p=59",
        "playlistPart": 59,
        "cid": 42801303276,
        "file": "/evidence/remaining29-selected-video-frames-2026-10-25/wrap_music-p59-632s.jpg",
        "sha256": "532f8c1ee8d801b7d3bf726042385c656d172f018fca130ac70950010165bf2a",
        "cue": "Selected source-video state; exact timing is stored in the observation evidence."
      },
      "instruction": [
        "Surround Bard with skimming stones.",
        "用掠水跳石围住吟游诗人。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters Puzzle 73 selected view",
          "zh": "Low Beamcasters 谜题 73选定画面"
        },
        "opening": {
          "en": "Selected room detail.",
          "zh": "选定的房间局部画面。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/remaining29-selected-video-frames/wrap_music-selected.svg",
            "width": 852,
            "height": 420,
            "articlePuzzleNumber": 73,
            "articleSection": "Puzzle 73",
            "sourceFrameFile": "/evidence/remaining29-selected-video-frames-2026-10-25/wrap_music-p59-632s.jpg",
            "sourceFrameFormat": "image/jpeg",
            "sourceFrameSha256": "532f8c1ee8d801b7d3bf726042385c656d172f018fca130ac70950010165bf2a",
            "sourceFrameBytes": 76244,
            "displaySourceFile": "/evidence/remaining29-selected-video-frames-2026-10-25/wrap_music-p59-632s.jpg",
            "displayFrameFormat": "image/jpeg",
            "displayFrameSha256": "532f8c1ee8d801b7d3bf726042385c656d172f018fca130ac70950010165bf2a",
            "imageSha256": "8728a2e98c78c3243f099e90fb93f150d991425141e5e555a24bec6a0be5a85f",
            "sourceTimeLabel": "Selected source-video view; exact timing is retained in the observation record.",
            "sourceId": "remaining29-bilibili-part-59-encoding",
            "observationSourceId": "remaining29-selected-video-frame-observations",
            "crop": {
              "x": 0,
              "y": 50,
              "width": 852,
              "height": 420,
              "excludedRects": []
            },
            "displayMasks": [],
            "markers": [
              {
                "type": "layout-reference",
                "color": "#31bfff",
                "center": {
                  "x": 427,
                  "y": 247
                },
                "radius": 16,
                "target": {
                  "en": "the lower purple button in the cross",
                  "zh": "十字形排列中最下面的紫色开关"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters Puzzle 73 selected room detail; the ring marks the lower purple button in the cross.",
              "zh": "谜题 73选定的房间局部画面；蓝圈标出十字形排列中最下面的紫色开关。"
            },
            "instruction": {
              "en": "Find the lower purple button in the cross.",
              "zh": "找到十字形排列中最下面的紫色开关。"
            },
            "result": {
              "en": "The blue ring marks the lower purple button in the cross.",
              "zh": "蓝圈标出十字形排列中最下面的紫色开关。"
            },
            "sourceCue": "Selected source-video frame; the precise PTS/time base is in the observation evidence.",
            "exactPtsKnown": true
          }
        ]
      }
    },
    {
      "levelId": "wrap_music_2",
      "articlePuzzleNumber": 74,
      "articleSection": "Puzzle 74",
      "articleGroup": "low-beamcasters",
      "articleReportedHint": {
        "en": "Let the current carry the row left.",
        "zh": "让水流带着整排物件向左移动。",
        "basis": "article-reported-key-idea",
        "sourceId": "low-beamcasters-article",
        "sourceSection": "Puzzle 74"
      },
      "existingSourceHint": {
        "en": "Let the current carry the row left.",
        "zh": "让水流带着整排物件向左移动。"
      },
      "articleIdentityEvidence": [
        {
          "evidenceFile": "low-beamcasters-candidate-classification-2026-10-23.json",
          "recordPath": "root.records[67]",
          "classification": "confirmed-shipped",
          "articlePuzzleNumber": 74,
          "source": {
            "sourceId": "low-beamcasters-article",
            "url": "https://sinkingstarwalkthrough.com/img/low/low-beamcasters/puzzle-74.webp",
            "section": "Puzzle 74",
            "file": "/evidence/low-beamcasters-puzzle-074-source.webp",
            "bytes": 37664,
            "sha256": "0b04cf3ad4a31d1f0eaabbb5526ced7eb66a5dd8bb3380ebfc1c377f9e83ce4b",
            "dimensions": [
              960,
              540
            ],
            "articleHtmlSha256": "05de7893ea0eedba49f7b9d93a4e0bfd9be1027c5b40c37bdbee49e91d743b0c",
            "pageSlug": "low-beamcasters-solutions"
          }
        }
      ],
      "articleStillIdentity": {
        "source": {
          "sourceId": "low-beamcasters-article",
          "url": "https://sinkingstarwalkthrough.com/img/low/low-beamcasters/puzzle-74.webp",
          "section": "Puzzle 74",
          "file": "/evidence/low-beamcasters-puzzle-074-source.webp",
          "bytes": 37664,
          "sha256": "0b04cf3ad4a31d1f0eaabbb5526ced7eb66a5dd8bb3380ebfc1c377f9e83ce4b",
          "dimensions": [
            960,
            540
          ],
          "articleHtmlSha256": "05de7893ea0eedba49f7b9d93a4e0bfd9be1027c5b40c37bdbee49e91d743b0c",
          "pageSlug": "low-beamcasters-solutions"
        }
      },
      "articleStillDisplayRejection": {
        "status": "article-still-not-displayed",
        "reason": "The watermark covers a blue orb on the repeated upper-right tile; the source still is retained but not displayed.",
        "sourceFrameFile": "/evidence/low-beamcasters-puzzle-074-source.webp",
        "sourceFrameSha256": "0b04cf3ad4a31d1f0eaabbb5526ced7eb66a5dd8bb3380ebfc1c377f9e83ce4b"
      },
      "nativeTexture": {
        "entry": "data-pc/__wrap_music_2.texture",
        "bytes": 490182,
        "sha256": "b196a49d72baa3d086dd53a0c124b6089bdc0e5a99d17c4544f64a4ed3775c2b",
        "dimensions": [
          2048,
          1152
        ],
        "formatId": 256
      },
      "nativeSource": {
        "entities": {
          "entry": "data-common/wrap_music_2.entities",
          "bytes": 59236,
          "sha256": "5eee30a43f9aba616b929a3983c9b01cf6fd035c16890a2a17ba68ebae3a1f45"
        },
        "levelManifest": {
          "entry": "data-common/wrap_music_2.level_manifest",
          "bytes": 2884,
          "sha256": "627895da8560bb856d47d797441f605d171913fb8af7dc5458dedaa071f6a6eb"
        }
      },
      "setMemberships": [
        {
          "set": "lily_highway_heroes_and_stones",
          "positions": [
            3
          ]
        }
      ],
      "overworldEntry": {
        "levelId": "wrap_music_2",
        "entityId": 95453634,
        "position": {
          "x": 22.0,
          "y": 6.0,
          "z": -21.0
        },
        "unlockPrerequisiteIds": [
          95453638
        ],
        "unlockIsOrGate": false,
        "demoPhase": null,
        "towerFlags": "HEROES|SKIPPING|DOWNSTAIRS",
        "achievement": null,
        "currentlyBroken": false,
        "currentlyDisfavored": false,
        "sourceEntry": "data-common/overworld.entities",
        "setThemeGroup": "lily_highway_heroes_and_stones"
      },
      "levelSet": "lily_highway_heroes_and_stones",
      "levelSetPosition": 3,
      "candidateThemeGroup": "lily_highway_heroes_and_stones",
      "inventoryStatusRetained": "overworld-entry-linked",
      "sourceId": "low-beamcasters-article",
      "videoSourceId": "remaining29-bilibili-part-59-encoding",
      "observationSourceId": "remaining29-selected-video-frame-observations",
      "articleCue": {
        "sourceId": "low-beamcasters-article",
        "section": "Puzzle 74",
        "articlePuzzleNumber": 74,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "remaining29-bilibili-part-59-encoding",
        "url": "https://www.bilibili.com/video/BV13FH96bE4m?p=59",
        "playlistPart": 59,
        "cid": 42801303276,
        "file": "/evidence/remaining29-selected-video-frames-2026-10-25/wrap_music_2-p59-721s.jpg",
        "sha256": "48f557f3e7c4b8406ddb8165b492cdcba25b7eed52a927440757b122643a3ebb",
        "cue": "Selected source-video state; exact timing is stored in the observation evidence."
      },
      "instruction": [
        "Let the current carry the row left.",
        "让水流带着整排物件向左移动。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters Puzzle 74 selected view",
          "zh": "Low Beamcasters 谜题 74选定画面"
        },
        "opening": {
          "en": "Selected room detail.",
          "zh": "选定的房间局部画面。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/remaining29-selected-video-frames/wrap_music_2-selected.svg",
            "width": 852,
            "height": 420,
            "articlePuzzleNumber": 74,
            "articleSection": "Puzzle 74",
            "sourceFrameFile": "/evidence/remaining29-selected-video-frames-2026-10-25/wrap_music_2-p59-721s.jpg",
            "sourceFrameFormat": "image/jpeg",
            "sourceFrameSha256": "48f557f3e7c4b8406ddb8165b492cdcba25b7eed52a927440757b122643a3ebb",
            "sourceFrameBytes": 62541,
            "displaySourceFile": "/evidence/remaining29-selected-video-frames-2026-10-25/wrap_music_2-p59-721s.jpg",
            "displayFrameFormat": "image/jpeg",
            "displayFrameSha256": "48f557f3e7c4b8406ddb8165b492cdcba25b7eed52a927440757b122643a3ebb",
            "imageSha256": "63945c38a74a5ffcc4186acf5602a740a6a61949e5dc89762310df635d906200",
            "sourceTimeLabel": "Selected source-video view; exact timing is retained in the observation record.",
            "sourceId": "remaining29-bilibili-part-59-encoding",
            "observationSourceId": "remaining29-selected-video-frame-observations",
            "crop": {
              "x": 0,
              "y": 50,
              "width": 852,
              "height": 420,
              "excludedRects": []
            },
            "displayMasks": [],
            "markers": [
              {
                "type": "layout-reference",
                "color": "#31bfff",
                "center": {
                  "x": 424,
                  "y": 250
                },
                "radius": 16,
                "target": {
                  "en": "the blue stone on the central island",
                  "zh": "中央岛屿上的蓝色石头"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters Puzzle 74 selected room detail; the ring marks the blue stone on the central island.",
              "zh": "谜题 74选定的房间局部画面；蓝圈标出中央岛屿上的蓝色石头。"
            },
            "instruction": {
              "en": "Find the blue stone on the central island.",
              "zh": "找到中央岛屿上的蓝色石头。"
            },
            "result": {
              "en": "The blue ring marks the blue stone on the central island.",
              "zh": "蓝圈标出中央岛屿上的蓝色石头。"
            },
            "sourceCue": "Selected source-video frame; the precise PTS/time base is in the observation evidence.",
            "exactPtsKnown": true
          }
        ]
      }
    },
    {
      "levelId": "reset_mirror",
      "articlePuzzleNumber": 76,
      "articleSection": "Puzzle 76",
      "articleGroup": "low-beamcasters",
      "articleReportedHint": {
        "en": "Set mirror to reach the left exit.",
        "zh": "调整镜子以抵达左侧出口。",
        "basis": "article-reported-key-idea",
        "sourceId": "low-beamcasters-article",
        "sourceSection": "Puzzle 76"
      },
      "existingSourceHint": {
        "en": "Set mirror to reach the left exit.",
        "zh": "调整镜子以抵达左侧出口。"
      },
      "articleIdentityEvidence": [
        {
          "evidenceFile": "low-beamcasters-candidate-classification-2026-10-23.json",
          "recordPath": "root.records[69]",
          "classification": "confirmed-shipped",
          "articlePuzzleNumber": 76,
          "source": {
            "sourceId": "low-beamcasters-article",
            "url": "https://sinkingstarwalkthrough.com/img/low/low-beamcasters/puzzle-76.webp",
            "section": "Puzzle 76",
            "file": "/evidence/low-beamcasters-puzzle-076-source.webp",
            "bytes": 35078,
            "sha256": "eef5d71391ccb34d218296ea4268639cfb2d46876c53b97f645daf7f4afa9ae7",
            "dimensions": [
              960,
              540
            ],
            "articleHtmlSha256": "05de7893ea0eedba49f7b9d93a4e0bfd9be1027c5b40c37bdbee49e91d743b0c",
            "pageSlug": "low-beamcasters-solutions"
          }
        }
      ],
      "articleStillIdentity": {
        "source": {
          "sourceId": "low-beamcasters-article",
          "url": "https://sinkingstarwalkthrough.com/img/low/low-beamcasters/puzzle-76.webp",
          "section": "Puzzle 76",
          "file": "/evidence/low-beamcasters-puzzle-076-source.webp",
          "bytes": 35078,
          "sha256": "eef5d71391ccb34d218296ea4268639cfb2d46876c53b97f645daf7f4afa9ae7",
          "dimensions": [
            960,
            540
          ],
          "articleHtmlSha256": "05de7893ea0eedba49f7b9d93a4e0bfd9be1027c5b40c37bdbee49e91d743b0c",
          "pageSlug": "low-beamcasters-solutions"
        }
      },
      "articleStillDisplayRejection": {
        "status": "article-still-not-displayed",
        "reason": "The watermark overlaps the upper-right platform; the source still is retained but not displayed.",
        "sourceFrameFile": "/evidence/low-beamcasters-puzzle-076-source.webp",
        "sourceFrameSha256": "eef5d71391ccb34d218296ea4268639cfb2d46876c53b97f645daf7f4afa9ae7"
      },
      "nativeTexture": {
        "entry": "data-pc/__reset_mirror.texture",
        "bytes": 900799,
        "sha256": "36f64498b37e24e380fe68909d36a2d1c7614527dc2052f65e98b86361e4362c",
        "dimensions": [
          2048,
          1152
        ],
        "formatId": 256
      },
      "nativeSource": {
        "entities": {
          "entry": "data-common/reset_mirror.entities",
          "bytes": 320654,
          "sha256": "fcff1759e411779158f9be8b51f1ca9e66b91418605b861f35b38c511bcdb2f6"
        },
        "levelManifest": {
          "entry": "data-common/reset_mirror.level_manifest",
          "bytes": 6294,
          "sha256": "6abb0908c3f902212b6438f7d1d121ac1c9cda82dadbc9cfe2b5c130f58fe895"
        }
      },
      "setMemberships": [
        {
          "set": "spawners",
          "positions": [
            2
          ]
        }
      ],
      "overworldEntry": {
        "levelId": "reset_mirror",
        "entityId": 62915265,
        "position": {
          "x": -19.0,
          "y": 18.0,
          "z": -18.0
        },
        "unlockPrerequisiteIds": [],
        "unlockIsOrGate": false,
        "demoPhase": null,
        "towerFlags": null,
        "achievement": null,
        "currentlyBroken": false,
        "currentlyDisfavored": false,
        "sourceEntry": "data-common/overworld.entities",
        "setThemeGroup": "spawners"
      },
      "levelSet": "spawners",
      "levelSetPosition": 2,
      "candidateThemeGroup": "spawners",
      "inventoryStatusRetained": "overworld-entry-linked",
      "sourceId": "low-beamcasters-article",
      "videoSourceId": "remaining29-bilibili-part-59-encoding",
      "observationSourceId": "remaining29-selected-video-frame-observations",
      "articleCue": {
        "sourceId": "low-beamcasters-article",
        "section": "Puzzle 76",
        "articlePuzzleNumber": 76,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "remaining29-bilibili-part-59-encoding",
        "url": "https://www.bilibili.com/video/BV13FH96bE4m?p=59",
        "playlistPart": 59,
        "cid": 42801303276,
        "file": "/evidence/remaining29-selected-video-frames-2026-10-25/reset_mirror-p59-1015s.jpg",
        "sha256": "6e5c97ae8ae879565a456c83c43939c489d7625f94110f353017df84aea3ed39",
        "cue": "Selected source-video state; exact timing is stored in the observation evidence."
      },
      "instruction": [
        "Set mirror to reach the left exit.",
        "调整镜子以抵达左侧出口。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters Puzzle 76 selected view",
          "zh": "Low Beamcasters 谜题 76选定画面"
        },
        "opening": {
          "en": "Selected room detail.",
          "zh": "选定的房间局部画面。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/remaining29-selected-video-frames/reset_mirror-selected.svg",
            "width": 852,
            "height": 420,
            "articlePuzzleNumber": 76,
            "articleSection": "Puzzle 76",
            "sourceFrameFile": "/evidence/remaining29-selected-video-frames-2026-10-25/reset_mirror-p59-1015s.jpg",
            "sourceFrameFormat": "image/jpeg",
            "sourceFrameSha256": "6e5c97ae8ae879565a456c83c43939c489d7625f94110f353017df84aea3ed39",
            "sourceFrameBytes": 61001,
            "displaySourceFile": "/evidence/remaining29-selected-video-frames-2026-10-25/reset_mirror-p59-1015s.jpg",
            "displayFrameFormat": "image/jpeg",
            "displayFrameSha256": "6e5c97ae8ae879565a456c83c43939c489d7625f94110f353017df84aea3ed39",
            "imageSha256": "27e031f542912546e83d77e6e89e967edc9ebfa0b2ccfa22ea5d280c23c21eb7",
            "sourceTimeLabel": "Selected source-video view; exact timing is retained in the observation record.",
            "sourceId": "remaining29-bilibili-part-59-encoding",
            "observationSourceId": "remaining29-selected-video-frame-observations",
            "crop": {
              "x": 0,
              "y": 50,
              "width": 852,
              "height": 420,
              "excludedRects": []
            },
            "displayMasks": [],
            "markers": [
              {
                "type": "layout-reference",
                "color": "#31bfff",
                "center": {
                  "x": 569,
                  "y": 247
                },
                "radius": 16,
                "target": {
                  "en": "the small mirror at the beam crossing",
                  "zh": "光束交叉处的小镜子"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters Puzzle 76 selected room detail; the ring marks the small mirror at the beam crossing.",
              "zh": "谜题 76选定的房间局部画面；蓝圈标出光束交叉处的小镜子。"
            },
            "instruction": {
              "en": "Find the small mirror at the beam crossing.",
              "zh": "找到光束交叉处的小镜子。"
            },
            "result": {
              "en": "The blue ring marks the small mirror at the beam crossing.",
              "zh": "蓝圈标出光束交叉处的小镜子。"
            },
            "sourceCue": "Selected source-video frame; the precise PTS/time base is in the observation evidence.",
            "exactPtsKnown": true
          }
        ]
      }
    },
    {
      "levelId": "duality_condensed",
      "articlePuzzleNumber": 84,
      "articleSection": "Puzzle 84",
      "articleGroup": "low-beamcasters",
      "articleReportedHint": {
        "en": "Treat each copy as a different puzzle.",
        "zh": "把每个副本当作不同谜题。",
        "basis": "article-reported-key-idea",
        "sourceId": "low-beamcasters-article",
        "sourceSection": "Puzzle 84"
      },
      "existingSourceHint": {
        "en": "Treat each copy as a different puzzle.",
        "zh": "把每个副本当作不同谜题。"
      },
      "articleIdentityEvidence": [
        {
          "evidenceFile": "low-beamcasters-candidate-classification-2026-10-23.json",
          "recordPath": "root.records[77]",
          "classification": "confirmed-shipped",
          "articlePuzzleNumber": 84,
          "source": {
            "sourceId": "low-beamcasters-article",
            "url": "https://sinkingstarwalkthrough.com/img/low/low-beamcasters/puzzle-84.webp",
            "section": "Puzzle 84",
            "file": "/evidence/low-beamcasters-puzzle-084-source.webp",
            "bytes": 82706,
            "sha256": "bebcee0de875c7789cfc3c4bb7f58acb92a1d7aa73c20497aa7be570c3bac3ba",
            "dimensions": [
              960,
              540
            ],
            "articleHtmlSha256": "05de7893ea0eedba49f7b9d93a4e0bfd9be1027c5b40c37bdbee49e91d743b0c",
            "pageSlug": "low-beamcasters-solutions"
          }
        }
      ],
      "articleStillIdentity": {
        "source": {
          "sourceId": "low-beamcasters-article",
          "url": "https://sinkingstarwalkthrough.com/img/low/low-beamcasters/puzzle-84.webp",
          "section": "Puzzle 84",
          "file": "/evidence/low-beamcasters-puzzle-084-source.webp",
          "bytes": 82706,
          "sha256": "bebcee0de875c7789cfc3c4bb7f58acb92a1d7aa73c20497aa7be570c3bac3ba",
          "dimensions": [
            960,
            540
          ],
          "articleHtmlSha256": "05de7893ea0eedba49f7b9d93a4e0bfd9be1027c5b40c37bdbee49e91d743b0c",
          "pageSlug": "low-beamcasters-solutions"
        }
      },
      "articleStillDisplayRejection": {
        "status": "article-still-not-displayed",
        "reason": "The watermark overlaps the repeated upper-right white corridor; the source still is retained but not displayed.",
        "sourceFrameFile": "/evidence/low-beamcasters-puzzle-084-source.webp",
        "sourceFrameSha256": "bebcee0de875c7789cfc3c4bb7f58acb92a1d7aa73c20497aa7be570c3bac3ba"
      },
      "nativeTexture": {
        "entry": "data-pc/__duality_condensed.texture",
        "bytes": 943202,
        "sha256": "9efac7304eaa9b86fbae0cd47115a7610aa1ec0858f8cfad791c4e1275fc9de1",
        "dimensions": [
          2048,
          1152
        ],
        "formatId": 256
      },
      "nativeSource": {
        "entities": {
          "entry": "data-common/duality_condensed.entities",
          "bytes": 149098,
          "sha256": "b79a33da1db8ae0502c7cfc65fdc48ccb659b711f2b2bca9e1e342d76bc60683"
        },
        "levelManifest": {
          "entry": "data-common/duality_condensed.level_manifest",
          "bytes": 6345,
          "sha256": "900fde54e3b9e08ba9da3b230118d3d3e9978d6e287ea3856fbbb11a6a044980"
        }
      },
      "setMemberships": [
        {
          "set": "drafts_arted",
          "positions": [
            178
          ]
        },
        {
          "set": "drafts_good_looking",
          "positions": [
            88
          ]
        },
        {
          "set": "lily_highway_stones_and_promesst",
          "positions": [
            1
          ]
        }
      ],
      "overworldEntry": {
        "levelId": "duality_condensed",
        "entityId": 59769922,
        "position": {
          "x": 153.0,
          "y": 2.0,
          "z": -21.0
        },
        "unlockPrerequisiteIds": [],
        "unlockIsOrGate": false,
        "demoPhase": null,
        "towerFlags": null,
        "achievement": null,
        "currentlyBroken": false,
        "currentlyDisfavored": false,
        "sourceEntry": "data-common/overworld.entities",
        "setThemeGroup": "lily_highway_stones_and_promesst"
      },
      "levelSet": "lily_highway_stones_and_promesst",
      "levelSetPosition": 1,
      "candidateThemeGroup": "lily_highway_stones_and_promesst",
      "inventoryStatusRetained": "overworld-entry-linked",
      "sourceId": "low-beamcasters-article",
      "videoSourceId": "remaining29-bilibili-part-60-encoding",
      "observationSourceId": "remaining29-selected-video-frame-observations",
      "articleCue": {
        "sourceId": "low-beamcasters-article",
        "section": "Puzzle 84",
        "articlePuzzleNumber": 84,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "remaining29-bilibili-part-60-encoding",
        "url": "https://www.bilibili.com/video/BV13FH96bE4m?p=60",
        "playlistPart": 60,
        "cid": 42802873515,
        "file": "/evidence/remaining29-selected-video-frames-2026-10-25/duality_condensed-p60-30s.jpg",
        "sha256": "6a79aef67ed9f5f6553cc7e5d0c5292ea8aa126fea8d8e54be1237b6effa5e05",
        "cue": "Selected source-video state; exact timing is stored in the observation evidence."
      },
      "instruction": [
        "Treat each copy as a different puzzle.",
        "把每个副本当作不同谜题。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters Puzzle 84 selected view",
          "zh": "Low Beamcasters 谜题 84选定画面"
        },
        "opening": {
          "en": "Selected room detail.",
          "zh": "选定的房间局部画面。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/remaining29-selected-video-frames/duality_condensed-selected.svg",
            "width": 852,
            "height": 420,
            "articlePuzzleNumber": 84,
            "articleSection": "Puzzle 84",
            "sourceFrameFile": "/evidence/remaining29-selected-video-frames-2026-10-25/duality_condensed-p60-30s.jpg",
            "sourceFrameFormat": "image/jpeg",
            "sourceFrameSha256": "6a79aef67ed9f5f6553cc7e5d0c5292ea8aa126fea8d8e54be1237b6effa5e05",
            "sourceFrameBytes": 134392,
            "displaySourceFile": "/evidence/remaining29-selected-video-frames-2026-10-25/duality_condensed-p60-30s.jpg",
            "displayFrameFormat": "image/jpeg",
            "displayFrameSha256": "6a79aef67ed9f5f6553cc7e5d0c5292ea8aa126fea8d8e54be1237b6effa5e05",
            "imageSha256": "828b09af97c07d90710b42a6f9e378fa1f6d5c14e7ef73f615c58cbaa9fc78f6",
            "sourceTimeLabel": "Selected source-video view; exact timing is retained in the observation record.",
            "sourceId": "remaining29-bilibili-part-60-encoding",
            "observationSourceId": "remaining29-selected-video-frame-observations",
            "crop": {
              "x": 0,
              "y": 50,
              "width": 852,
              "height": 420,
              "excludedRects": []
            },
            "displayMasks": [],
            "markers": [
              {
                "type": "layout-reference",
                "color": "#31bfff",
                "center": {
                  "x": 253,
                  "y": 105
                },
                "radius": 16,
                "target": {
                  "en": "the yellow button above the yellow gate",
                  "zh": "黄色界门上方的黄色开关"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters Puzzle 84 selected room detail; the ring marks the yellow button above the yellow gate.",
              "zh": "谜题 84选定的房间局部画面；蓝圈标出黄色界门上方的黄色开关。"
            },
            "instruction": {
              "en": "Find the yellow button above the yellow gate.",
              "zh": "找到黄色界门上方的黄色开关。"
            },
            "result": {
              "en": "The blue ring marks the yellow button above the yellow gate.",
              "zh": "蓝圈标出黄色界门上方的黄色开关。"
            },
            "sourceCue": "Selected source-video frame; the precise PTS/time base is in the observation evidence.",
            "exactPtsKnown": true
          }
        ]
      }
    },
    {
      "levelId": "duality_2",
      "articlePuzzleNumber": 85,
      "articleSection": "Puzzle 85",
      "articleGroup": "low-beamcasters",
      "articleReportedHint": {
        "en": "Find a separate solution for each copy.",
        "zh": "为每个副本寻找不同解法。",
        "basis": "article-reported-key-idea",
        "sourceId": "low-beamcasters-article",
        "sourceSection": "Puzzle 85"
      },
      "existingSourceHint": {
        "en": "Find a separate solution for each copy.",
        "zh": "为每个副本寻找不同解法。"
      },
      "articleIdentityEvidence": [
        {
          "evidenceFile": "low-beamcasters-candidate-classification-2026-10-23.json",
          "recordPath": "root.records[78]",
          "classification": "confirmed-shipped",
          "articlePuzzleNumber": 85,
          "source": {
            "sourceId": "low-beamcasters-article",
            "url": "https://sinkingstarwalkthrough.com/img/low/low-beamcasters/puzzle-85.webp",
            "section": "Puzzle 85",
            "file": "/evidence/low-beamcasters-puzzle-085-source.webp",
            "bytes": 97920,
            "sha256": "26c6d49362ecc250309c68cb7a14f2068db0729ebe7a8de74c8e812f59efdb83",
            "dimensions": [
              960,
              540
            ],
            "articleHtmlSha256": "05de7893ea0eedba49f7b9d93a4e0bfd9be1027c5b40c37bdbee49e91d743b0c",
            "pageSlug": "low-beamcasters-solutions"
          }
        }
      ],
      "articleStillIdentity": {
        "source": {
          "sourceId": "low-beamcasters-article",
          "url": "https://sinkingstarwalkthrough.com/img/low/low-beamcasters/puzzle-85.webp",
          "section": "Puzzle 85",
          "file": "/evidence/low-beamcasters-puzzle-085-source.webp",
          "bytes": 97920,
          "sha256": "26c6d49362ecc250309c68cb7a14f2068db0729ebe7a8de74c8e812f59efdb83",
          "dimensions": [
            960,
            540
          ],
          "articleHtmlSha256": "05de7893ea0eedba49f7b9d93a4e0bfd9be1027c5b40c37bdbee49e91d743b0c",
          "pageSlug": "low-beamcasters-solutions"
        }
      },
      "articleStillDisplayRejection": {
        "status": "article-still-not-displayed",
        "reason": "The watermark overlaps the upper-right white floor and mirror area; the source still is retained but not displayed.",
        "sourceFrameFile": "/evidence/low-beamcasters-puzzle-085-source.webp",
        "sourceFrameSha256": "26c6d49362ecc250309c68cb7a14f2068db0729ebe7a8de74c8e812f59efdb83"
      },
      "nativeTexture": {
        "entry": "data-pc/__duality_2.texture",
        "bytes": 1001374,
        "sha256": "1f55aa608c8c29ca323a94e7d6385830f4149b871138b319885f1d15b51e9762",
        "dimensions": [
          2048,
          1152
        ],
        "formatId": 256
      },
      "nativeSource": {
        "entities": {
          "entry": "data-common/duality_2.entities",
          "bytes": 202791,
          "sha256": "23c9a9845abb1e1c04cffbb1d9a170f8dcc21edb28f25e13e6c40cd1ef1fd48f"
        },
        "levelManifest": {
          "entry": "data-common/duality_2.level_manifest",
          "bytes": 5842,
          "sha256": "3173b49ff45cc0f03e7a513c0880156f1ebddbe520922e7744ed6bc6b0c85ff8"
        }
      },
      "setMemberships": [
        {
          "set": "lily_highway_stones_and_promesst",
          "positions": [
            2
          ]
        }
      ],
      "overworldEntry": {
        "levelId": "duality_2",
        "entityId": 94379214,
        "position": {
          "x": 154.0,
          "y": 2.0,
          "z": -21.0
        },
        "unlockPrerequisiteIds": [
          59769922
        ],
        "unlockIsOrGate": false,
        "demoPhase": null,
        "towerFlags": "SKIPPING|PROMESST|DOWNSTAIRS",
        "achievement": null,
        "currentlyBroken": false,
        "currentlyDisfavored": false,
        "sourceEntry": "data-common/overworld.entities",
        "setThemeGroup": "lily_highway_stones_and_promesst"
      },
      "levelSet": "lily_highway_stones_and_promesst",
      "levelSetPosition": 2,
      "candidateThemeGroup": "lily_highway_stones_and_promesst",
      "inventoryStatusRetained": "overworld-entry-linked",
      "sourceId": "low-beamcasters-article",
      "videoSourceId": "remaining29-bilibili-part-60-encoding",
      "observationSourceId": "remaining29-selected-video-frame-observations",
      "articleCue": {
        "sourceId": "low-beamcasters-article",
        "section": "Puzzle 85",
        "articlePuzzleNumber": 85,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "remaining29-bilibili-part-60-encoding",
        "url": "https://www.bilibili.com/video/BV13FH96bE4m?p=60",
        "playlistPart": 60,
        "cid": 42802873515,
        "file": "/evidence/remaining29-selected-video-frames-2026-10-25/duality_2-p60-91s.jpg",
        "sha256": "99b2fbcb473de1b3882615d1421dd02f071ca3f584ae948d31a0d6df643a39a4",
        "cue": "Selected source-video state; exact timing is stored in the observation evidence."
      },
      "instruction": [
        "Find a separate solution for each copy.",
        "为每个副本寻找不同解法。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters Puzzle 85 selected view",
          "zh": "Low Beamcasters 谜题 85选定画面"
        },
        "opening": {
          "en": "Selected room detail.",
          "zh": "选定的房间局部画面。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/remaining29-selected-video-frames/duality_2-selected.svg",
            "width": 852,
            "height": 420,
            "articlePuzzleNumber": 85,
            "articleSection": "Puzzle 85",
            "sourceFrameFile": "/evidence/remaining29-selected-video-frames-2026-10-25/duality_2-p60-91s.jpg",
            "sourceFrameFormat": "image/jpeg",
            "sourceFrameSha256": "99b2fbcb473de1b3882615d1421dd02f071ca3f584ae948d31a0d6df643a39a4",
            "sourceFrameBytes": 145784,
            "displaySourceFile": "/evidence/remaining29-selected-video-frames-2026-10-25/duality_2-p60-91s.jpg",
            "displayFrameFormat": "image/jpeg",
            "displayFrameSha256": "99b2fbcb473de1b3882615d1421dd02f071ca3f584ae948d31a0d6df643a39a4",
            "imageSha256": "09d2f02de9c2efcea2369e8279d35c3daeb0ab57cea4361935e0424fe1651522",
            "sourceTimeLabel": "Selected source-video view; exact timing is retained in the observation record.",
            "sourceId": "remaining29-bilibili-part-60-encoding",
            "observationSourceId": "remaining29-selected-video-frame-observations",
            "crop": {
              "x": 0,
              "y": 50,
              "width": 852,
              "height": 420,
              "excludedRects": []
            },
            "displayMasks": [],
            "markers": [
              {
                "type": "layout-reference",
                "color": "#31bfff",
                "center": {
                  "x": 313,
                  "y": 99
                },
                "radius": 16,
                "target": {
                  "en": "the yellow button in the upper room",
                  "zh": "上方房间里的黄色开关"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters Puzzle 85 selected room detail; the ring marks the yellow button in the upper room.",
              "zh": "谜题 85选定的房间局部画面；蓝圈标出上方房间里的黄色开关。"
            },
            "instruction": {
              "en": "Find the yellow button in the upper room.",
              "zh": "找到上方房间里的黄色开关。"
            },
            "result": {
              "en": "The blue ring marks the yellow button in the upper room.",
              "zh": "蓝圈标出上方房间里的黄色开关。"
            },
            "sourceCue": "Selected source-video frame; the precise PTS/time base is in the observation evidence.",
            "exactPtsKnown": true
          }
        ]
      }
    },
    {
      "levelId": "yars_revenge_setup_v3",
      "articlePuzzleNumber": 93,
      "articleSection": "Puzzle 93",
      "articleGroup": "low-beamcasters",
      "articleReportedHint": {
        "en": "Let the current sweep the goblin away.",
        "zh": "让水流把哥布林冲走。",
        "basis": "article-reported-key-idea",
        "sourceId": "low-beamcasters-article",
        "sourceSection": "Puzzle 93"
      },
      "existingSourceHint": {
        "en": "Let the current sweep the goblin away.",
        "zh": "让水流把哥布林冲走。"
      },
      "articleIdentityEvidence": [
        {
          "evidenceFile": "low-beamcasters-candidate-classification-2026-10-23.json",
          "recordPath": "root.records[86]",
          "classification": "confirmed-shipped",
          "articlePuzzleNumber": 93,
          "source": {
            "sourceId": "low-beamcasters-article",
            "url": "https://sinkingstarwalkthrough.com/img/low/low-beamcasters/puzzle-93.webp",
            "section": "Puzzle 93",
            "file": "/evidence/low-beamcasters-puzzle-093-source.webp",
            "bytes": 63676,
            "sha256": "6e1048cdb5fc26f25f4b4bfd4daf7207d2c76cb6912f43d6d99c160e26a367f8",
            "dimensions": [
              960,
              540
            ],
            "articleHtmlSha256": "05de7893ea0eedba49f7b9d93a4e0bfd9be1027c5b40c37bdbee49e91d743b0c",
            "pageSlug": "low-beamcasters-solutions"
          }
        }
      ],
      "articleStillIdentity": {
        "source": {
          "sourceId": "low-beamcasters-article",
          "url": "https://sinkingstarwalkthrough.com/img/low/low-beamcasters/puzzle-93.webp",
          "section": "Puzzle 93",
          "file": "/evidence/low-beamcasters-puzzle-093-source.webp",
          "bytes": 63676,
          "sha256": "6e1048cdb5fc26f25f4b4bfd4daf7207d2c76cb6912f43d6d99c160e26a367f8",
          "dimensions": [
            960,
            540
          ],
          "articleHtmlSha256": "05de7893ea0eedba49f7b9d93a4e0bfd9be1027c5b40c37bdbee49e91d743b0c",
          "pageSlug": "low-beamcasters-solutions"
        }
      },
      "articleStillDisplayRejection": {
        "status": "article-still-not-displayed",
        "reason": "The watermark overlaps a hero and stone at the upper-right edge; the source still is retained but not displayed.",
        "sourceFrameFile": "/evidence/low-beamcasters-puzzle-093-source.webp",
        "sourceFrameSha256": "6e1048cdb5fc26f25f4b4bfd4daf7207d2c76cb6912f43d6d99c160e26a367f8"
      },
      "nativeTexture": {
        "entry": "data-pc/__yars_revenge_setup_v3.texture",
        "bytes": 765320,
        "sha256": "10c785a385e7b2d758614b606c13be0cc6bd72cf70d8a40f07d1512702133aaf",
        "dimensions": [
          2048,
          1152
        ],
        "formatId": 256
      },
      "nativeSource": {
        "entities": {
          "entry": "data-common/yars_revenge_setup_v3.entities",
          "bytes": 118326,
          "sha256": "323d5d0f5170f2e17f80687a57f5bf89e5097ffa7b899f7b08923dcb24a4079e"
        },
        "levelManifest": {
          "entry": "data-common/yars_revenge_setup_v3.level_manifest",
          "bytes": 5067,
          "sha256": "9ba6ad0bb8443fd399e0e4062ea83cc3cf8016cec108c940c68fd3dd502a7ca4"
        }
      },
      "setMemberships": [
        {
          "set": "lily_highway_mirrors_and_stones",
          "positions": [
            7
          ]
        }
      ],
      "overworldEntry": {
        "levelId": "yars_revenge_setup_v3",
        "entityId": 62985653,
        "position": {
          "x": 141.0,
          "y": 7.0,
          "z": -21.0
        },
        "unlockPrerequisiteIds": [
          111268945
        ],
        "unlockIsOrGate": false,
        "demoPhase": null,
        "towerFlags": null,
        "achievement": null,
        "currentlyBroken": false,
        "currentlyDisfavored": false,
        "sourceEntry": "data-common/overworld.entities",
        "setThemeGroup": "lily_highway_mirrors_and_stones"
      },
      "levelSet": "lily_highway_mirrors_and_stones",
      "levelSetPosition": 7,
      "candidateThemeGroup": "lily_highway_mirrors_and_stones",
      "inventoryStatusRetained": "overworld-entry-linked",
      "sourceId": "low-beamcasters-article",
      "videoSourceId": "remaining29-bilibili-part-60-encoding",
      "observationSourceId": "remaining29-selected-video-frame-observations",
      "articleCue": {
        "sourceId": "low-beamcasters-article",
        "section": "Puzzle 93",
        "articlePuzzleNumber": 93,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "remaining29-bilibili-part-60-encoding",
        "url": "https://www.bilibili.com/video/BV13FH96bE4m?p=60",
        "playlistPart": 60,
        "cid": 42802873515,
        "file": "/evidence/remaining29-selected-video-frames-2026-10-25/yars_revenge_setup_v3-p60-1050s.jpg",
        "sha256": "28d018c9fcc0974c3aa42a1a2d6dd60d4e879e23b997eb1dca7d0a12f0d234b1",
        "cue": "Selected source-video state; exact timing is stored in the observation evidence."
      },
      "instruction": [
        "Let the current sweep the goblin away.",
        "让水流把哥布林冲走。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters Puzzle 93 selected view",
          "zh": "Low Beamcasters 谜题 93选定画面"
        },
        "opening": {
          "en": "Selected room detail.",
          "zh": "选定的房间局部画面。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/remaining29-selected-video-frames/yars_revenge_setup_v3-selected.svg",
            "width": 852,
            "height": 420,
            "articlePuzzleNumber": 93,
            "articleSection": "Puzzle 93",
            "sourceFrameFile": "/evidence/remaining29-selected-video-frames-2026-10-25/yars_revenge_setup_v3-p60-1050s.jpg",
            "sourceFrameFormat": "image/jpeg",
            "sourceFrameSha256": "28d018c9fcc0974c3aa42a1a2d6dd60d4e879e23b997eb1dca7d0a12f0d234b1",
            "sourceFrameBytes": 103372,
            "displaySourceFile": "/evidence/remaining29-selected-video-frames-2026-10-25/yars_revenge_setup_v3-p60-1050s.jpg",
            "displayFrameFormat": "image/jpeg",
            "displayFrameSha256": "28d018c9fcc0974c3aa42a1a2d6dd60d4e879e23b997eb1dca7d0a12f0d234b1",
            "imageSha256": "14d48ae369d093d54fb910edf1df92ea98df3d2803390030cf9d3ce36afe9e62",
            "sourceTimeLabel": "Selected source-video view; exact timing is retained in the observation record.",
            "sourceId": "remaining29-bilibili-part-60-encoding",
            "observationSourceId": "remaining29-selected-video-frame-observations",
            "crop": {
              "x": 0,
              "y": 50,
              "width": 852,
              "height": 420,
              "excludedRects": []
            },
            "displayMasks": [],
            "markers": [
              {
                "type": "layout-reference",
                "color": "#31bfff",
                "center": {
                  "x": 337,
                  "y": 85
                },
                "radius": 16,
                "target": {
                  "en": "the upper blue stone on the raised platform",
                  "zh": "抬高平台上最上面的蓝色石头"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters Puzzle 93 selected room detail; the ring marks the upper blue stone on the raised platform.",
              "zh": "谜题 93选定的房间局部画面；蓝圈标出抬高平台上最上面的蓝色石头。"
            },
            "instruction": {
              "en": "Find the upper blue stone on the raised platform.",
              "zh": "找到抬高平台上最上面的蓝色石头。"
            },
            "result": {
              "en": "The blue ring marks the upper blue stone on the raised platform.",
              "zh": "蓝圈标出抬高平台上最上面的蓝色石头。"
            },
            "sourceCue": "Selected source-video frame; the precise PTS/time base is in the observation evidence.",
            "exactPtsKnown": true
          }
        ]
      }
    },
    {
      "levelId": "infinite_looping_skipper0_alt",
      "articlePuzzleNumber": 97,
      "articleSection": "Puzzle 97",
      "articleGroup": "low-beamcasters",
      "articleReportedHint": {
        "en": "Use a stone to interrupt purple light.",
        "zh": "用跳石间歇挡住紫色光束。",
        "basis": "article-reported-key-idea",
        "sourceId": "low-beamcasters-article",
        "sourceSection": "Puzzle 97"
      },
      "existingSourceHint": {
        "en": "Use a stone to interrupt purple light.",
        "zh": "用跳石间歇挡住紫色光束。"
      },
      "articleIdentityEvidence": [
        {
          "evidenceFile": "low-beamcasters-candidate-classification-2026-10-23.json",
          "recordPath": "root.records[89]",
          "classification": "confirmed-shipped",
          "articlePuzzleNumber": 97,
          "source": {
            "sourceId": "low-beamcasters-article",
            "url": "https://sinkingstarwalkthrough.com/img/low/low-beamcasters/puzzle-97.webp",
            "section": "Puzzle 97",
            "file": "/evidence/low-beamcasters-puzzle-097-source.webp",
            "bytes": 50732,
            "sha256": "1bc4b6869aa2e1bb516063b0d96b9332497f58fccac63c14f91b87a171c091d0",
            "dimensions": [
              960,
              540
            ],
            "articleHtmlSha256": "05de7893ea0eedba49f7b9d93a4e0bfd9be1027c5b40c37bdbee49e91d743b0c",
            "pageSlug": "low-beamcasters-solutions"
          }
        }
      ],
      "articleStillIdentity": {
        "source": {
          "sourceId": "low-beamcasters-article",
          "url": "https://sinkingstarwalkthrough.com/img/low/low-beamcasters/puzzle-97.webp",
          "section": "Puzzle 97",
          "file": "/evidence/low-beamcasters-puzzle-097-source.webp",
          "bytes": 50732,
          "sha256": "1bc4b6869aa2e1bb516063b0d96b9332497f58fccac63c14f91b87a171c091d0",
          "dimensions": [
            960,
            540
          ],
          "articleHtmlSha256": "05de7893ea0eedba49f7b9d93a4e0bfd9be1027c5b40c37bdbee49e91d743b0c",
          "pageSlug": "low-beamcasters-solutions"
        }
      },
      "articleStillDisplayRejection": {
        "status": "article-still-not-displayed",
        "reason": "The watermark overlaps the upper-right repeated vertical walkway; the source still is retained but not displayed.",
        "sourceFrameFile": "/evidence/low-beamcasters-puzzle-097-source.webp",
        "sourceFrameSha256": "1bc4b6869aa2e1bb516063b0d96b9332497f58fccac63c14f91b87a171c091d0"
      },
      "nativeTexture": {
        "entry": "data-pc/__infinite_looping_skipper0_alt.texture",
        "bytes": 733619,
        "sha256": "355f73b4c47f57566dcecd3c743726000c9c476d6499ac13de16ce110d24887d",
        "dimensions": [
          2048,
          1152
        ],
        "formatId": 256
      },
      "nativeSource": {
        "entities": {
          "entry": "data-common/infinite_looping_skipper0_alt.entities",
          "bytes": 88601,
          "sha256": "5947e6f8186c0b21c90d22d221aeb283c931ac37138442930902b39744df9a6e"
        },
        "levelManifest": {
          "entry": "data-common/infinite_looping_skipper0_alt.level_manifest",
          "bytes": 5294,
          "sha256": "7e3e1289f46257bce68019fc81770ac1b35d069e97fd9a93d756e23c2c6a2527"
        }
      },
      "setMemberships": [
        {
          "set": "lily_highway_mirrors_and_stones",
          "positions": [
            1
          ]
        }
      ],
      "overworldEntry": {
        "levelId": "infinite_looping_skipper0_alt",
        "entityId": 59779084,
        "position": {
          "x": 97.0,
          "y": -1.0,
          "z": -21.0
        },
        "unlockPrerequisiteIds": [],
        "unlockIsOrGate": false,
        "demoPhase": null,
        "towerFlags": null,
        "achievement": null,
        "currentlyBroken": false,
        "currentlyDisfavored": false,
        "sourceEntry": "data-common/overworld.entities",
        "setThemeGroup": "lily_highway_mirrors_and_stones"
      },
      "levelSet": "lily_highway_mirrors_and_stones",
      "levelSetPosition": 1,
      "candidateThemeGroup": "lily_highway_mirrors_and_stones",
      "inventoryStatusRetained": "overworld-entry-linked",
      "sourceId": "low-beamcasters-article",
      "videoSourceId": "remaining29-bilibili-part-60-encoding",
      "observationSourceId": "remaining29-selected-video-frame-observations",
      "articleCue": {
        "sourceId": "low-beamcasters-article",
        "section": "Puzzle 97",
        "articlePuzzleNumber": 97,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "remaining29-bilibili-part-60-encoding",
        "url": "https://www.bilibili.com/video/BV13FH96bE4m?p=60",
        "playlistPart": 60,
        "cid": 42802873515,
        "file": "/evidence/remaining29-selected-video-frames-2026-10-25/infinite_looping_skipper0_alt-p60-1886s.jpg",
        "sha256": "656b7a4072a180ab2f8d40c73fbdc1d86b38f3596a20f22698ecedb407e2e136",
        "cue": "Selected source-video state; exact timing is stored in the observation evidence."
      },
      "instruction": [
        "Use a stone to interrupt purple light.",
        "用跳石间歇挡住紫色光束。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters Puzzle 97 selected view",
          "zh": "Low Beamcasters 谜题 97选定画面"
        },
        "opening": {
          "en": "Selected room detail.",
          "zh": "选定的房间局部画面。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/remaining29-selected-video-frames/infinite_looping_skipper0_alt-selected.svg",
            "width": 852,
            "height": 420,
            "articlePuzzleNumber": 97,
            "articleSection": "Puzzle 97",
            "sourceFrameFile": "/evidence/remaining29-selected-video-frames-2026-10-25/infinite_looping_skipper0_alt-p60-1886s.jpg",
            "sourceFrameFormat": "image/jpeg",
            "sourceFrameSha256": "656b7a4072a180ab2f8d40c73fbdc1d86b38f3596a20f22698ecedb407e2e136",
            "sourceFrameBytes": 84257,
            "displaySourceFile": "/evidence/remaining29-selected-video-frames-2026-10-25/infinite_looping_skipper0_alt-p60-1886s.jpg",
            "displayFrameFormat": "image/jpeg",
            "displayFrameSha256": "656b7a4072a180ab2f8d40c73fbdc1d86b38f3596a20f22698ecedb407e2e136",
            "imageSha256": "3d1347f960fe88f24a850db17a9ebf3f3816174221dd14502ad173f4fb838840",
            "sourceTimeLabel": "Selected source-video view; exact timing is retained in the observation record.",
            "sourceId": "remaining29-bilibili-part-60-encoding",
            "observationSourceId": "remaining29-selected-video-frame-observations",
            "crop": {
              "x": 0,
              "y": 50,
              "width": 852,
              "height": 420,
              "excludedRects": []
            },
            "displayMasks": [],
            "markers": [
              {
                "type": "layout-reference",
                "color": "#31bfff",
                "center": {
                  "x": 290,
                  "y": 160
                },
                "radius": 16,
                "target": {
                  "en": "the yellow button below the orange ball",
                  "zh": "橙色圆球下方的黄色开关"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters Puzzle 97 selected room detail; the ring marks the yellow button below the orange ball.",
              "zh": "谜题 97选定的房间局部画面；蓝圈标出橙色圆球下方的黄色开关。"
            },
            "instruction": {
              "en": "Find the yellow button below the orange ball.",
              "zh": "找到橙色圆球下方的黄色开关。"
            },
            "result": {
              "en": "The blue ring marks the yellow button below the orange ball.",
              "zh": "蓝圈标出橙色圆球下方的黄色开关。"
            },
            "sourceCue": "Selected source-video frame; the precise PTS/time base is in the observation evidence.",
            "exactPtsKnown": true
          }
        ]
      }
    },
    {
      "levelId": "infinite_looping_skipper_alt",
      "articlePuzzleNumber": 98,
      "articleSection": "Puzzle 98",
      "articleGroup": "low-beamcasters",
      "articleReportedHint": {
        "en": "Use lily pads to interrupt purple light.",
        "zh": "用睡莲平台间歇挡住紫色光束。",
        "basis": "article-reported-key-idea",
        "sourceId": "low-beamcasters-article",
        "sourceSection": "Puzzle 98"
      },
      "existingSourceHint": {
        "en": "Use lily pads to interrupt purple light.",
        "zh": "用睡莲平台间歇挡住紫色光束。"
      },
      "articleIdentityEvidence": [
        {
          "evidenceFile": "low-beamcasters-candidate-classification-2026-10-23.json",
          "recordPath": "root.records[90]",
          "classification": "confirmed-shipped",
          "articlePuzzleNumber": 98,
          "source": {
            "sourceId": "low-beamcasters-article",
            "url": "https://sinkingstarwalkthrough.com/img/low/low-beamcasters/puzzle-98.webp",
            "section": "Puzzle 98",
            "file": "/evidence/low-beamcasters-puzzle-098-source.webp",
            "bytes": 50948,
            "sha256": "70baaa46a595ba763f6d560c4e8a4280cebb0e5558db506108988b2133410143",
            "dimensions": [
              960,
              540
            ],
            "articleHtmlSha256": "05de7893ea0eedba49f7b9d93a4e0bfd9be1027c5b40c37bdbee49e91d743b0c",
            "pageSlug": "low-beamcasters-solutions"
          }
        }
      ],
      "articleStillIdentity": {
        "source": {
          "sourceId": "low-beamcasters-article",
          "url": "https://sinkingstarwalkthrough.com/img/low/low-beamcasters/puzzle-98.webp",
          "section": "Puzzle 98",
          "file": "/evidence/low-beamcasters-puzzle-098-source.webp",
          "bytes": 50948,
          "sha256": "70baaa46a595ba763f6d560c4e8a4280cebb0e5558db506108988b2133410143",
          "dimensions": [
            960,
            540
          ],
          "articleHtmlSha256": "05de7893ea0eedba49f7b9d93a4e0bfd9be1027c5b40c37bdbee49e91d743b0c",
          "pageSlug": "low-beamcasters-solutions"
        }
      },
      "articleStillDisplayRejection": {
        "status": "article-still-not-displayed",
        "reason": "The watermark overlaps the upper-right repeated vertical walkway; the source still is retained but not displayed.",
        "sourceFrameFile": "/evidence/low-beamcasters-puzzle-098-source.webp",
        "sourceFrameSha256": "70baaa46a595ba763f6d560c4e8a4280cebb0e5558db506108988b2133410143"
      },
      "nativeTexture": {
        "entry": "data-pc/__infinite_looping_skipper_alt.texture",
        "bytes": 717864,
        "sha256": "f7e66d9600de3b593d3d49f835cd242879e856b07812c2ec12b52031ac74edee",
        "dimensions": [
          2048,
          1152
        ],
        "formatId": 256
      },
      "nativeSource": {
        "entities": {
          "entry": "data-common/infinite_looping_skipper_alt.entities",
          "bytes": 90295,
          "sha256": "489f55ea74a2f93ace738fe3263a68357e7d1fbcc81a329d391f0b8f62298b97"
        },
        "levelManifest": {
          "entry": "data-common/infinite_looping_skipper_alt.level_manifest",
          "bytes": 4995,
          "sha256": "07cbd08ea494712d7b2c1c08bc06d3f28c631eea2d723e694078b159aad9e588"
        }
      },
      "setMemberships": [
        {
          "set": "lily_highway_mirrors_and_stones",
          "positions": [
            2
          ]
        }
      ],
      "overworldEntry": {
        "levelId": "infinite_looping_skipper_alt",
        "entityId": 59779086,
        "position": {
          "x": 96.0,
          "y": -1.0,
          "z": -21.0
        },
        "unlockPrerequisiteIds": [
          59779084
        ],
        "unlockIsOrGate": false,
        "demoPhase": null,
        "towerFlags": null,
        "achievement": null,
        "currentlyBroken": false,
        "currentlyDisfavored": false,
        "sourceEntry": "data-common/overworld.entities",
        "setThemeGroup": "lily_highway_mirrors_and_stones"
      },
      "levelSet": "lily_highway_mirrors_and_stones",
      "levelSetPosition": 2,
      "candidateThemeGroup": "lily_highway_mirrors_and_stones",
      "inventoryStatusRetained": "overworld-entry-linked",
      "sourceId": "low-beamcasters-article",
      "videoSourceId": "remaining29-bilibili-part-60-encoding",
      "observationSourceId": "remaining29-selected-video-frame-observations",
      "articleCue": {
        "sourceId": "low-beamcasters-article",
        "section": "Puzzle 98",
        "articlePuzzleNumber": 98,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "remaining29-bilibili-part-60-encoding",
        "url": "https://www.bilibili.com/video/BV13FH96bE4m?p=60",
        "playlistPart": 60,
        "cid": 42802873515,
        "file": "/evidence/remaining29-selected-video-frames-2026-10-25/infinite_looping_skipper_alt-p60-1928s.jpg",
        "sha256": "79ea59f3a7ae2946011e020dbfe0c9d7639b96a6ff53be2465d9ce13bb96d28f",
        "cue": "Selected source-video state; exact timing is stored in the observation evidence."
      },
      "instruction": [
        "Use lily pads to interrupt purple light.",
        "用睡莲平台间歇挡住紫色光束。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters Puzzle 98 selected view",
          "zh": "Low Beamcasters 谜题 98选定画面"
        },
        "opening": {
          "en": "Selected room detail.",
          "zh": "选定的房间局部画面。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/remaining29-selected-video-frames/infinite_looping_skipper_alt-selected.svg",
            "width": 852,
            "height": 420,
            "articlePuzzleNumber": 98,
            "articleSection": "Puzzle 98",
            "sourceFrameFile": "/evidence/remaining29-selected-video-frames-2026-10-25/infinite_looping_skipper_alt-p60-1928s.jpg",
            "sourceFrameFormat": "image/jpeg",
            "sourceFrameSha256": "79ea59f3a7ae2946011e020dbfe0c9d7639b96a6ff53be2465d9ce13bb96d28f",
            "sourceFrameBytes": 86043,
            "displaySourceFile": "/evidence/remaining29-selected-video-frames-2026-10-25/infinite_looping_skipper_alt-p60-1928s.jpg",
            "displayFrameFormat": "image/jpeg",
            "displayFrameSha256": "79ea59f3a7ae2946011e020dbfe0c9d7639b96a6ff53be2465d9ce13bb96d28f",
            "imageSha256": "5bbeabebf2d6bfd97e12d335abf5e8312871c05a45a26defac73e7bd2bbb9bed",
            "sourceTimeLabel": "Selected source-video view; exact timing is retained in the observation record.",
            "sourceId": "remaining29-bilibili-part-60-encoding",
            "observationSourceId": "remaining29-selected-video-frame-observations",
            "crop": {
              "x": 0,
              "y": 50,
              "width": 852,
              "height": 420,
              "excludedRects": []
            },
            "displayMasks": [],
            "markers": [
              {
                "type": "layout-reference",
                "color": "#31bfff",
                "center": {
                  "x": 506,
                  "y": 423
                },
                "radius": 16,
                "target": {
                  "en": "the blue gem beside the lower purple beamcaster",
                  "zh": "下方紫色光束发射器旁的蓝色宝石"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters Puzzle 98 selected room detail; the ring marks the blue gem beside the lower purple beamcaster.",
              "zh": "谜题 98选定的房间局部画面；蓝圈标出下方紫色光束发射器旁的蓝色宝石。"
            },
            "instruction": {
              "en": "Find the blue gem beside the lower purple beamcaster.",
              "zh": "找到下方紫色光束发射器旁的蓝色宝石。"
            },
            "result": {
              "en": "The blue ring marks the blue gem beside the lower purple beamcaster.",
              "zh": "蓝圈标出下方紫色光束发射器旁的蓝色宝石。"
            },
            "sourceCue": "Selected source-video frame; the precise PTS/time base is in the observation evidence.",
            "exactPtsKnown": true
          }
        ]
      }
    },
    {
      "levelId": "infinite_looping_skipper_mirrored_ikaruga_alt",
      "articlePuzzleNumber": 100,
      "articleSection": "Puzzle 100",
      "articleGroup": "low-beamcasters",
      "articleReportedHint": {
        "en": "Keep two decoy pads off the route.",
        "zh": "让两块诱饵睡莲避开通路。",
        "basis": "article-reported-key-idea",
        "sourceId": "low-beamcasters-article",
        "sourceSection": "Puzzle 100"
      },
      "existingSourceHint": {
        "en": "Keep two decoy pads off the route.",
        "zh": "让两块诱饵睡莲避开通路。"
      },
      "articleIdentityEvidence": [
        {
          "evidenceFile": "low-beamcasters-candidate-classification-2026-10-23.json",
          "recordPath": "root.records[92]",
          "classification": "confirmed-shipped",
          "articlePuzzleNumber": 100,
          "source": {
            "sourceId": "low-beamcasters-article",
            "url": "https://sinkingstarwalkthrough.com/img/low/low-beamcasters/puzzle-100.webp",
            "section": "Puzzle 100",
            "file": "/evidence/low-beamcasters-puzzle-100-source.webp",
            "bytes": 47950,
            "sha256": "5b5397bce24ddedce54b7fc71c1c01b92808c2a237ddb97c221d61c60397d08b",
            "dimensions": [
              960,
              540
            ],
            "articleHtmlSha256": "05de7893ea0eedba49f7b9d93a4e0bfd9be1027c5b40c37bdbee49e91d743b0c",
            "pageSlug": "low-beamcasters-solutions"
          }
        }
      ],
      "articleStillIdentity": {
        "source": {
          "sourceId": "low-beamcasters-article",
          "url": "https://sinkingstarwalkthrough.com/img/low/low-beamcasters/puzzle-100.webp",
          "section": "Puzzle 100",
          "file": "/evidence/low-beamcasters-puzzle-100-source.webp",
          "bytes": 47950,
          "sha256": "5b5397bce24ddedce54b7fc71c1c01b92808c2a237ddb97c221d61c60397d08b",
          "dimensions": [
            960,
            540
          ],
          "articleHtmlSha256": "05de7893ea0eedba49f7b9d93a4e0bfd9be1027c5b40c37bdbee49e91d743b0c",
          "pageSlug": "low-beamcasters-solutions"
        }
      },
      "articleStillDisplayRejection": {
        "status": "article-still-not-displayed",
        "reason": "The watermark overlaps the upper-right lily/boulder play area; the source still is retained but not displayed.",
        "sourceFrameFile": "/evidence/low-beamcasters-puzzle-100-source.webp",
        "sourceFrameSha256": "5b5397bce24ddedce54b7fc71c1c01b92808c2a237ddb97c221d61c60397d08b"
      },
      "nativeTexture": {
        "entry": "data-pc/__infinite_looping_skipper_mirrored_ikaruga_alt.texture",
        "bytes": 695912,
        "sha256": "66103e7445c85a09dea715f3e0e0cdb01b799f824a69459b6abed64c3b61c111",
        "dimensions": [
          2048,
          1152
        ],
        "formatId": 256
      },
      "nativeSource": {
        "entities": {
          "entry": "data-common/infinite_looping_skipper_mirrored_ikaruga_alt.entities",
          "bytes": 103885,
          "sha256": "9c76231e5935aa238231cfb3114e5af869409cf2979d9d1cc2268b1854c71d44"
        },
        "levelManifest": {
          "entry": "data-common/infinite_looping_skipper_mirrored_ikaruga_alt.level_manifest",
          "bytes": 4983,
          "sha256": "efa824d10a4544d3625a66bcb2678050b75942ba80ddf4dd08124044e479242c"
        }
      },
      "setMemberships": [
        {
          "set": "lily_highway_mirrors_and_stones",
          "positions": [
            4
          ]
        }
      ],
      "overworldEntry": {
        "levelId": "infinite_looping_skipper_mirrored_ikaruga_alt",
        "entityId": 59779090,
        "position": {
          "x": 94.0,
          "y": -1.0,
          "z": -21.0
        },
        "unlockPrerequisiteIds": [
          59779088
        ],
        "unlockIsOrGate": false,
        "demoPhase": null,
        "towerFlags": "MIRRORS|SKIPPING|DOWNSTAIRS",
        "achievement": null,
        "currentlyBroken": false,
        "currentlyDisfavored": false,
        "sourceEntry": "data-common/overworld.entities",
        "setThemeGroup": "lily_highway_mirrors_and_stones"
      },
      "levelSet": "lily_highway_mirrors_and_stones",
      "levelSetPosition": 4,
      "candidateThemeGroup": "lily_highway_mirrors_and_stones",
      "inventoryStatusRetained": "overworld-entry-linked",
      "sourceId": "low-beamcasters-article",
      "videoSourceId": "remaining29-bilibili-part-60-encoding",
      "observationSourceId": "remaining29-selected-video-frame-observations",
      "articleCue": {
        "sourceId": "low-beamcasters-article",
        "section": "Puzzle 100",
        "articlePuzzleNumber": 100,
        "exactPtsKnown": false
      },
      "displaySource": {
        "sourceId": "remaining29-bilibili-part-60-encoding",
        "url": "https://www.bilibili.com/video/BV13FH96bE4m?p=60",
        "playlistPart": 60,
        "cid": 42802873515,
        "file": "/evidence/remaining29-selected-video-frames-2026-10-25/infinite_looping_skipper_mirrored_ikaruga_alt-p60-2063s.jpg",
        "sha256": "65cca33a1a490ea690f7dcf30c30a497dc27eb13341d0243b0ada41159575b18",
        "cue": "Selected source-video state; exact timing is stored in the observation evidence."
      },
      "instruction": [
        "Keep two decoy pads off the route.",
        "让两块诱饵睡莲避开通路。"
      ],
      "walkthrough": {
        "label": {
          "en": "Low Beamcasters Puzzle 100 selected view",
          "zh": "Low Beamcasters 谜题 100选定画面"
        },
        "opening": {
          "en": "Selected room detail.",
          "zh": "选定的房间局部画面。"
        },
        "frames": [
          {
            "image": "/art/walkthrough/remaining29-selected-video-frames/infinite_looping_skipper_mirrored_ikaruga_alt-selected.svg",
            "width": 852,
            "height": 420,
            "articlePuzzleNumber": 100,
            "articleSection": "Puzzle 100",
            "sourceFrameFile": "/evidence/remaining29-selected-video-frames-2026-10-25/infinite_looping_skipper_mirrored_ikaruga_alt-p60-2063s.jpg",
            "sourceFrameFormat": "image/jpeg",
            "sourceFrameSha256": "65cca33a1a490ea690f7dcf30c30a497dc27eb13341d0243b0ada41159575b18",
            "sourceFrameBytes": 78550,
            "displaySourceFile": "/evidence/remaining29-selected-video-frames-2026-10-25/infinite_looping_skipper_mirrored_ikaruga_alt-p60-2063s.jpg",
            "displayFrameFormat": "image/jpeg",
            "displayFrameSha256": "65cca33a1a490ea690f7dcf30c30a497dc27eb13341d0243b0ada41159575b18",
            "imageSha256": "8c4d8791c725326f55224d029ea656d12ca6ce8069798de0621036c3cb16c357",
            "sourceTimeLabel": "Selected source-video view; exact timing is retained in the observation record.",
            "sourceId": "remaining29-bilibili-part-60-encoding",
            "observationSourceId": "remaining29-selected-video-frame-observations",
            "crop": {
              "x": 0,
              "y": 50,
              "width": 852,
              "height": 420,
              "excludedRects": []
            },
            "displayMasks": [],
            "markers": [
              {
                "type": "layout-reference",
                "color": "#31bfff",
                "center": {
                  "x": 379,
                  "y": 249
                },
                "radius": 16,
                "target": {
                  "en": "the mirror beside the yellow button",
                  "zh": "黄色开关旁的镜子"
                }
              }
            ],
            "alt": {
              "en": "Low Beamcasters Puzzle 100 selected room detail; the ring marks the mirror beside the yellow button.",
              "zh": "谜题 100选定的房间局部画面；蓝圈标出黄色开关旁的镜子。"
            },
            "instruction": {
              "en": "Find the mirror beside the yellow button.",
              "zh": "找到黄色开关旁的镜子。"
            },
            "result": {
              "en": "The blue ring marks the mirror beside the yellow button.",
              "zh": "蓝圈标出黄色开关旁的镜子。"
            },
            "sourceCue": "Selected source-video frame; the precise PTS/time base is in the observation evidence.",
            "exactPtsKnown": true
          }
        ]
      }
    }
  ],
  "displayCoverageSourceId": "remaining29-display-coverage-delta",
  "displayCoverageRevision": "remaining29-display-coverage-delta-2026-10-25"
}
