{
  "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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        53,
        133
      ],
      "vertices": [
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        [
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      "start_pose": {
        "reflect": false,
        "rot_deg": 135.0,
        "tx": 699.5958367524611,
        "ty": 244.6142864788328
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    },
    {
      "piece_id": "large_tri_2",
      "color": [
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      "vertices": [
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          0.0
        ],
        [
          112.0,
          0.0
        ],
        [
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      ],
      "start_pose": {
        "reflect": false,
        "rot_deg": 270.0,
        "tx": 553.1806727730502,
        "ty": 143.40511692196947
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    },
    {
      "piece_id": "medium_tri",
      "color": [
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        94,
        54
      ],
      "vertices": [
        [
          0.0,
          0.0
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        [
          79.196,
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        [
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      ],
      "start_pose": {
        "reflect": false,
        "rot_deg": 0.0,
        "tx": 132.4499663401135,
        "ty": 378.45490062288235
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    },
    {
      "piece_id": "square",
      "color": [
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      "vertices": [
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        [
          56.0,
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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": 180.0,
        "tx": 89.57220401500688,
        "ty": 304.9570505554096
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    },
    {
      "piece_id": "parallelogram",
      "color": [
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        119,
        48
      ],
      "vertices": [
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        [
          56.0,
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        [
          112.0,
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        [
          56.0,
          56.0
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      ],
      "start_pose": {
        "reflect": true,
        "rot_deg": 270.0,
        "tx": 189.91594995846202,
        "ty": 37.49431757346795
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    },
    {
      "piece_id": "small_tri_1",
      "color": [
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        93
      ],
      "vertices": [
        [
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        [
          56.0,
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        [
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      ],
      "start_pose": {
        "reflect": false,
        "rot_deg": 180.0,
        "tx": 119.94417845516347,
        "ty": 172.93778197567258
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    },
    {
      "piece_id": "small_tri_2",
      "color": [
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        75,
        64
      ],
      "vertices": [
        [
          0.0,
          0.0
        ],
        [
          56.0,
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        [
          0.0,
          56.0
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      ],
      "start_pose": {
        "reflect": false,
        "rot_deg": 90.0,
        "tx": 618.3119225988728,
        "ty": 31.95313890637278
      }
    }
  ],
  "target_silhouette": [
    [
      [
        304.0,
        324.0
      ],
      [
        360.0,
        268.0
      ],
      [
        360.0,
        324.0
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      [
        416.0,
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      [
        472.0,
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      [
        472.0,
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      [
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      [
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      [
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        268.0
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      [
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      [
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      [
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      [
        304.0,
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      ],
      [
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        324.0
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}