{
  "canvas": {
    "width": 832,
    "height": 480
  },
  "instructions": "Rigidly move all seven pieces (translation + rotation; the parallelogram may also be reflected) so that together they exactly tile target_silhouette without overlaps. Report each piece's final pose.",
  "pieces": [
    {
      "piece_id": "large_tri_1",
      "color": [
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        119,
        48
      ],
      "vertices": [
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      "start_pose": {
        "reflect": false,
        "rot_deg": 45.0,
        "tx": 391.64711230217495,
        "ty": 346.5239576136399
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    },
    {
      "piece_id": "large_tri_2",
      "color": [
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      "vertices": [
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          0.0
        ],
        [
          112.0,
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        ],
        [
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          112.0
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      "start_pose": {
        "reflect": false,
        "rot_deg": 0.0,
        "tx": 696.1868818841689,
        "ty": 115.38416509290454
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    },
    {
      "piece_id": "medium_tri",
      "color": [
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        54
      ],
      "vertices": [
        [
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        ],
        [
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        [
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      ],
      "start_pose": {
        "reflect": false,
        "rot_deg": 90.0,
        "tx": 590.8419887001683,
        "ty": 306.9366634543312
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    },
    {
      "piece_id": "square",
      "color": [
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      "vertices": [
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          0.0
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        [
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        [
          56.0,
          56.0
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        [
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          56.0
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      ],
      "start_pose": {
        "reflect": false,
        "rot_deg": 90.0,
        "tx": 715.7561578587284,
        "ty": 36.80369662000115
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    },
    {
      "piece_id": "parallelogram",
      "color": [
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        139,
        151
      ],
      "vertices": [
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        [
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        [
          112.0,
          56.0
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        [
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          56.0
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      ],
      "start_pose": {
        "reflect": true,
        "rot_deg": 270.0,
        "tx": 593.4138600389316,
        "ty": 133.42023233384106
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    },
    {
      "piece_id": "small_tri_1",
      "color": [
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        64
      ],
      "vertices": [
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        [
          56.0,
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        [
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          56.0
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      ],
      "start_pose": {
        "reflect": false,
        "rot_deg": 315.0,
        "tx": 585.1283348952463,
        "ty": 55.03233013221362
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    },
    {
      "piece_id": "small_tri_2",
      "color": [
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        133
      ],
      "vertices": [
        [
          0.0,
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        ],
        [
          56.0,
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        [
          0.0,
          56.0
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      ],
      "start_pose": {
        "reflect": false,
        "rot_deg": 45.0,
        "tx": 226.75613176970543,
        "ty": 239.24313592786558
      }
    }
  ],
  "target_silhouette": [
    [
      [
        416.0,
        156.0
      ],
      [
        360.0,
        212.0
      ],
      [
        304.0,
        212.0
      ],
      [
        360.0,
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      [
        360.0,
        324.0
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      [
        416.0,
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      [
        416.0,
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      [
        472.0,
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      [
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        268.0
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      [
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        212.0
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      [
        528.0,
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      [
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      [
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}