{
  "brief": {
    "criterion_shown_to_judge": "強い作品とは、両立しにくい性質を同時に成り立たせている作品であり、かつ他の作品と似ていない作品である。たとえば「関門をそれぞれ一度ずつ通る」ことと「そのような一筆の道は平面内に存在しない」ことを同時に満たす、など。美しさや上手さではなく、この基準で選ぶこと。",
    "claim_glossary": {
      "single_stroke": "描かれた線は一本の連続した曲線である",
      "no_cusps": "線はどの点でも折り返さない",
      "transversal_only": "自己交差はすべて横断的である",
      "has_self_intersection": "線は自分自身と交わる",
      "has_triple_point": "同じ一点をちょうど三度以上通る箇所がある",
      "open_ended": "線の端点は紙の上に存在しない",
      "leaves_page": "線は紙の外へ出る",
      "closed_loop": "線は始点に戻る",
      "each_gate_once": "指定された関門をそれぞれちょうど一度ずつ通る",
      "euler_impossible": "この関門配置に対し平面内の一筆の道は存在しない",
      "frame_dependent": "この性質は裁ち落としの後にのみ成立する",
      "reserve_declared": "触れないと決めた領域がある",
      "reserve_honoured": "触れないと決めた領域に刻線は一度も入っていない",
      "crosses_prior_strata": "以前に刻まれた線と交わる",
      "fresh_metal": "まだ誰も触れていない金属の上に主に刻まれている",
      "survives_crowding": "板が混みあった後に刻まれ、なお新しい面を得ている",
      "space_filling": "線はある領域を稠密に埋める",
      "returns_to_region": "線は同じ領域へ三度以上戻る",
      "monotone_free": "線はどの方向にも単調でない"
    },
    "pairs": 24,
    "note": "Judges see only the two images and the criterion above. Scores, claims and genomes stay in 'hidden' and must not be shown."
  },
  "tasks": [
    {
      "task": "P00",
      "quartile": 0,
      "image_1": "png/P00_1.png",
      "image_2": "png/P00_2.png",
      "correct": "1",
      "gap": 7.078,
      "hidden": {
        "1": {
          "id": "A00024",
          "score": 10.494,
          "tensions": [
            "space_filling+no_cusps",
            "has_triple_point+no_cusps",
            "fresh_metal+crosses_prior_strata"
          ],
          "claims": [
            "crosses_prior_strata",
            "each_gate_once",
            "fresh_metal",
            "has_self_intersection",
            "has_triple_point",
            "leaves_page",
            "monotone_free",
            "no_cusps",
            "reserve_declared",
            "returns_to_region",
            "single_stroke",
            "space_filling"
          ]
        },
        "2": {
          "id": "A00045",
          "score": 3.416,
          "tensions": [],
          "claims": [
            "crosses_prior_strata",
            "has_self_intersection",
            "has_triple_point",
            "monotone_free",
            "reserve_declared",
            "returns_to_region",
            "single_stroke",
            "space_filling"
          ]
        }
      }
    },
    {
      "task": "P01",
      "quartile": 0,
      "image_1": "png/P01_1.png",
      "image_2": "png/P01_2.png",
      "correct": "2",
      "gap": 2.731,
      "hidden": {
        "1": {
          "id": "A00027",
          "score": 5.455,
          "tensions": [
            "reserve_honoured+crosses_prior_strata"
          ],
          "claims": [
            "crosses_prior_strata",
            "has_self_intersection",
            "monotone_free",
            "reserve_declared",
            "reserve_honoured",
            "returns_to_region",
            "single_stroke",
            "transversal_only"
          ]
        },
        "2": {
          "id": "A00064",
          "score": 8.185,
          "tensions": [
            "reserve_honoured+space_filling",
            "reserve_honoured+crosses_prior_strata"
          ],
          "claims": [
            "crosses_prior_strata",
            "each_gate_once",
            "has_self_intersection",
            "has_triple_point",
            "leaves_page",
            "monotone_free",
            "reserve_declared",
            "reserve_honoured",
            "returns_to_region",
            "single_stroke",
            "space_filling"
          ]
        }
      }
    },
    {
      "task": "P02",
      "quartile": 0,
      "image_1": "png/P02_1.png",
      "image_2": "png/P02_2.png",
      "correct": "2",
      "gap": 4.526,
      "hidden": {
        "1": {
          "id": "A00062",
          "score": 5.455,
          "tensions": [
            "reserve_honoured+crosses_prior_strata"
          ],
          "claims": [
            "crosses_prior_strata",
            "has_self_intersection",
            "monotone_free",
            "reserve_declared",
            "reserve_honoured",
            "returns_to_region",
            "single_stroke",
            "transversal_only"
          ]
        },
        "2": {
          "id": "A00036",
          "score": 9.981,
          "tensions": [
            "transversal_only+has_triple_point",
            "reserve_honoured+space_filling",
            "reserve_honoured+crosses_prior_strata"
          ],
          "claims": [
            "crosses_prior_strata",
            "has_self_intersection",
            "has_triple_point",
            "monotone_free",
            "reserve_declared",
            "reserve_honoured",
            "returns_to_region",
            "single_stroke",
            "space_filling",
            "transversal_only"
          ]
        }
      }
    },
    {
      "task": "P03",
      "quartile": 0,
      "image_1": "png/P03_1.png",
      "image_2": "png/P03_2.png",
      "correct": "1",
      "gap": 2.532,
      "hidden": {
        "1": {
          "id": "A00009",
          "score": 8.244,
          "tensions": [
            "has_triple_point+no_cusps",
            "fresh_metal+crosses_prior_strata"
          ],
          "claims": [
            "crosses_prior_strata",
            "frame_dependent",
            "fresh_metal",
            "has_self_intersection",
            "has_triple_point",
            "leaves_page",
            "monotone_free",
            "no_cusps",
            "open_ended",
            "returns_to_region",
            "single_stroke"
          ]
        },
        "2": {
          "id": "A00056",
          "score": 5.711,
          "tensions": [
            "reserve_honoured+crosses_prior_strata"
          ],
          "claims": [
            "crosses_prior_strata",
            "has_self_intersection",
            "has_triple_point",
            "leaves_page",
            "monotone_free",
            "reserve_declared",
            "reserve_honoured",
            "returns_to_region",
            "single_stroke"
          ]
        }
      }
    },
    {
      "task": "P04",
      "quartile": 0,
      "image_1": "png/P04_1.png",
      "image_2": "png/P04_2.png",
      "correct": "1",
      "gap": 2.503,
      "hidden": {
        "1": {
          "id": "A00020",
          "score": 5.994,
          "tensions": [
            "fresh_metal+crosses_prior_strata"
          ],
          "claims": [
            "crosses_prior_strata",
            "fresh_metal",
            "has_self_intersection",
            "leaves_page",
            "monotone_free",
            "reserve_declared",
            "returns_to_region",
            "single_stroke",
            "space_filling",
            "transversal_only"
          ]
        },
        "2": {
          "id": "A00011",
          "score": 3.49,
          "tensions": [],
          "claims": [
            "crosses_prior_strata",
            "each_gate_once",
            "has_self_intersection",
            "has_triple_point",
            "leaves_page",
            "monotone_free",
            "returns_to_region",
            "single_stroke",
            "space_filling"
          ]
        }
      }
    },
    {
      "task": "P05",
      "quartile": 0,
      "image_1": "png/P05_1.png",
      "image_2": "png/P05_2.png",
      "correct": "1",
      "gap": 5.026,
      "hidden": {
        "1": {
          "id": "A00024",
          "score": 10.494,
          "tensions": [
            "space_filling+no_cusps",
            "has_triple_point+no_cusps",
            "fresh_metal+crosses_prior_strata"
          ],
          "claims": [
            "crosses_prior_strata",
            "each_gate_once",
            "fresh_metal",
            "has_self_intersection",
            "has_triple_point",
            "leaves_page",
            "monotone_free",
            "no_cusps",
            "reserve_declared",
            "returns_to_region",
            "single_stroke",
            "space_filling"
          ]
        },
        "2": {
          "id": "A00046",
          "score": 5.468,
          "tensions": [
            "has_triple_point+no_cusps"
          ],
          "claims": [
            "crosses_prior_strata",
            "has_self_intersection",
            "has_triple_point",
            "leaves_page",
            "monotone_free",
            "no_cusps",
            "returns_to_region",
            "single_stroke"
          ]
        }
      }
    },
    {
      "task": "P06",
      "quartile": 1,
      "image_1": "png/P06_1.png",
      "image_2": "png/P06_2.png",
      "correct": "2",
      "gap": 4.032,
      "hidden": {
        "1": {
          "id": "A00088",
          "score": 3.929,
          "tensions": [],
          "claims": [
            "crosses_prior_strata",
            "each_gate_once",
            "has_self_intersection",
            "has_triple_point",
            "leaves_page",
            "monotone_free",
            "reserve_declared",
            "returns_to_region",
            "single_stroke",
            "space_filling"
          ]
        },
        "2": {
          "id": "A00083",
          "score": 7.961,
          "tensions": [
            "transversal_only+has_triple_point",
            "reserve_honoured+crosses_prior_strata"
          ],
          "claims": [
            "crosses_prior_strata",
            "has_self_intersection",
            "has_triple_point",
            "leaves_page",
            "monotone_free",
            "reserve_declared",
            "reserve_honoured",
            "returns_to_region",
            "single_stroke",
            "transversal_only"
          ]
        }
      }
    },
    {
      "task": "P07",
      "quartile": 1,
      "image_1": "png/P07_1.png",
      "image_2": "png/P07_2.png",
      "correct": "1",
      "gap": 4.724,
      "hidden": {
        "1": {
          "id": "A00097",
          "score": 7.961,
          "tensions": [
            "has_triple_point+no_cusps",
            "reserve_honoured+crosses_prior_strata"
          ],
          "claims": [
            "crosses_prior_strata",
            "has_self_intersection",
            "has_triple_point",
            "leaves_page",
            "monotone_free",
            "no_cusps",
            "reserve_declared",
            "reserve_honoured",
            "returns_to_region",
            "single_stroke"
          ]
        },
        "2": {
          "id": "A00095",
          "score": 3.237,
          "tensions": [],
          "claims": [
            "crosses_prior_strata",
            "has_self_intersection",
            "monotone_free",
            "reserve_declared",
            "returns_to_region",
            "single_stroke",
            "transversal_only"
          ]
        }
      }
    },
    {
      "task": "P08",
      "quartile": 1,
      "image_1": "png/P08_1.png",
      "image_2": "png/P08_2.png",
      "correct": "2",
      "gap": 4.545,
      "hidden": {
        "1": {
          "id": "A00109",
          "score": 3.416,
          "tensions": [],
          "claims": [
            "crosses_prior_strata",
            "has_self_intersection",
            "has_triple_point",
            "monotone_free",
            "reserve_declared",
            "returns_to_region",
            "single_stroke",
            "space_filling"
          ]
        },
        "2": {
          "id": "A00075",
          "score": 7.961,
          "tensions": [
            "transversal_only+has_triple_point",
            "reserve_honoured+crosses_prior_strata"
          ],
          "claims": [
            "crosses_prior_strata",
            "has_self_intersection",
            "has_triple_point",
            "leaves_page",
            "monotone_free",
            "reserve_declared",
            "reserve_honoured",
            "returns_to_region",
            "single_stroke",
            "transversal_only"
          ]
        }
      }
    },
    {
      "task": "P09",
      "quartile": 1,
      "image_1": "png/P09_1.png",
      "image_2": "png/P09_2.png",
      "correct": "2",
      "gap": 2.221,
      "hidden": {
        "1": {
          "id": "A00111",
          "score": 3.49,
          "tensions": [],
          "claims": [
            "crosses_prior_strata",
            "each_gate_once",
            "has_self_intersection",
            "has_triple_point",
            "leaves_page",
            "monotone_free",
            "returns_to_region",
            "single_stroke",
            "space_filling"
          ]
        },
        "2": {
          "id": "A00089",
          "score": 5.711,
          "tensions": [
            "reserve_honoured+crosses_prior_strata"
          ],
          "claims": [
            "crosses_prior_strata",
            "has_self_intersection",
            "has_triple_point",
            "leaves_page",
            "monotone_free",
            "reserve_declared",
            "reserve_honoured",
            "returns_to_region",
            "single_stroke"
          ]
        }
      }
    },
    {
      "task": "P10",
      "quartile": 1,
      "image_1": "png/P10_1.png",
      "image_2": "png/P10_2.png",
      "correct": "1",
      "gap": 3.75,
      "hidden": {
        "1": {
          "id": "A00124",
          "score": 7.679,
          "tensions": [
            "reserve_honoured+space_filling",
            "reserve_honoured+crosses_prior_strata"
          ],
          "claims": [
            "crosses_prior_strata",
            "has_self_intersection",
            "has_triple_point",
            "monotone_free",
            "reserve_declared",
            "reserve_honoured",
            "returns_to_region",
            "single_stroke",
            "space_filling"
          ]
        },
        "2": {
          "id": "A00085",
          "score": 3.929,
          "tensions": [],
          "claims": [
            "crosses_prior_strata",
            "each_gate_once",
            "has_self_intersection",
            "has_triple_point",
            "leaves_page",
            "monotone_free",
            "reserve_declared",
            "returns_to_region",
            "single_stroke",
            "space_filling"
          ]
        }
      }
    },
    {
      "task": "P11",
      "quartile": 1,
      "image_1": "png/P11_1.png",
      "image_2": "png/P11_2.png",
      "correct": "1",
      "gap": 4.315,
      "hidden": {
        "1": {
          "id": "A00094",
          "score": 8.244,
          "tensions": [
            "has_triple_point+no_cusps",
            "fresh_metal+crosses_prior_strata"
          ],
          "claims": [
            "crosses_prior_strata",
            "fresh_metal",
            "has_self_intersection",
            "has_triple_point",
            "leaves_page",
            "monotone_free",
            "no_cusps",
            "reserve_declared",
            "returns_to_region",
            "single_stroke",
            "survives_crowding"
          ]
        },
        "2": {
          "id": "A00110",
          "score": 3.929,
          "tensions": [],
          "claims": [
            "crosses_prior_strata",
            "each_gate_once",
            "has_self_intersection",
            "has_triple_point",
            "leaves_page",
            "monotone_free",
            "reserve_declared",
            "returns_to_region",
            "single_stroke",
            "space_filling"
          ]
        }
      }
    },
    {
      "task": "P12",
      "quartile": 2,
      "image_1": "png/P12_1.png",
      "image_2": "png/P12_2.png",
      "correct": "1",
      "gap": 4.519,
      "hidden": {
        "1": {
          "id": "A00127",
          "score": 7.961,
          "tensions": [
            "has_triple_point+no_cusps",
            "reserve_honoured+crosses_prior_strata"
          ],
          "claims": [
            "crosses_prior_strata",
            "has_self_intersection",
            "has_triple_point",
            "leaves_page",
            "monotone_free",
            "no_cusps",
            "reserve_declared",
            "reserve_honoured",
            "returns_to_region",
            "single_stroke"
          ]
        },
        "2": {
          "id": "A00150",
          "score": 3.442,
          "tensions": [],
          "claims": [
            "crosses_prior_strata",
            "has_self_intersection",
            "has_triple_point",
            "leaves_page",
            "monotone_free",
            "returns_to_region",
            "single_stroke",
            "space_filling"
          ]
        }
      }
    },
    {
      "task": "P13",
      "quartile": 2,
      "image_1": "png/P13_1.png",
      "image_2": "png/P13_2.png",
      "correct": "1",
      "gap": 2.12,
      "hidden": {
        "1": {
          "id": "A00129",
          "score": 5.357,
          "tensions": [
            "reserve_honoured+crosses_prior_strata"
          ],
          "claims": [
            "crosses_prior_strata",
            "has_self_intersection",
            "has_triple_point",
            "monotone_free",
            "reserve_declared",
            "reserve_honoured",
            "returns_to_region",
            "single_stroke"
          ]
        },
        "2": {
          "id": "A00136",
          "score": 3.237,
          "tensions": [],
          "claims": [
            "crosses_prior_strata",
            "has_self_intersection",
            "monotone_free",
            "reserve_declared",
            "returns_to_region",
            "single_stroke",
            "transversal_only"
          ]
        }
      }
    },
    {
      "task": "P14",
      "quartile": 2,
      "image_1": "png/P14_1.png",
      "image_2": "png/P14_2.png",
      "correct": "2",
      "gap": 2.744,
      "hidden": {
        "1": {
          "id": "A00131",
          "score": 5.494,
          "tensions": [
            "space_filling+no_cusps"
          ],
          "claims": [
            "crosses_prior_strata",
            "has_self_intersection",
            "monotone_free",
            "no_cusps",
            "reserve_declared",
            "returns_to_region",
            "single_stroke",
            "space_filling"
          ]
        },
        "2": {
          "id": "A00144",
          "score": 8.237,
          "tensions": [
            "each_gate_once+euler_impossible",
            "euler_impossible+single_stroke"
          ],
          "claims": [
            "crosses_prior_strata",
            "each_gate_once",
            "euler_impossible",
            "has_self_intersection",
            "has_triple_point",
            "leaves_page",
            "monotone_free",
            "reserve_declared",
            "returns_to_region",
            "single_stroke",
            "space_filling"
          ]
        }
      }
    },
    {
      "task": "P15",
      "quartile": 2,
      "image_1": "png/P15_1.png",
      "image_2": "png/P15_2.png",
      "correct": "2",
      "gap": 4.519,
      "hidden": {
        "1": {
          "id": "A00150",
          "score": 3.442,
          "tensions": [],
          "claims": [
            "crosses_prior_strata",
            "has_self_intersection",
            "has_triple_point",
            "leaves_page",
            "monotone_free",
            "returns_to_region",
            "single_stroke",
            "space_filling"
          ]
        },
        "2": {
          "id": "A00173",
          "score": 7.961,
          "tensions": [
            "has_triple_point+no_cusps",
            "reserve_honoured+crosses_prior_strata"
          ],
          "claims": [
            "crosses_prior_strata",
            "has_self_intersection",
            "has_triple_point",
            "leaves_page",
            "monotone_free",
            "no_cusps",
            "reserve_declared",
            "reserve_honoured",
            "returns_to_region",
            "single_stroke"
          ]
        }
      }
    },
    {
      "task": "P16",
      "quartile": 2,
      "image_1": "png/P16_1.png",
      "image_2": "png/P16_2.png",
      "correct": "1",
      "gap": 4.214,
      "hidden": {
        "1": {
          "id": "A00163",
          "score": 7.705,
          "tensions": [
            "has_triple_point+no_cusps",
            "reserve_honoured+crosses_prior_strata"
          ],
          "claims": [
            "crosses_prior_strata",
            "has_self_intersection",
            "has_triple_point",
            "monotone_free",
            "no_cusps",
            "reserve_declared",
            "reserve_honoured",
            "returns_to_region",
            "single_stroke"
          ]
        },
        "2": {
          "id": "A00157",
          "score": 3.49,
          "tensions": [],
          "claims": [
            "crosses_prior_strata",
            "each_gate_once",
            "has_self_intersection",
            "has_triple_point",
            "leaves_page",
            "monotone_free",
            "returns_to_region",
            "single_stroke",
            "space_filling"
          ]
        }
      }
    },
    {
      "task": "P17",
      "quartile": 2,
      "image_1": "png/P17_1.png",
      "image_2": "png/P17_2.png",
      "correct": "2",
      "gap": 2.5,
      "hidden": {
        "1": {
          "id": "A00146",
          "score": 2.968,
          "tensions": [],
          "claims": [
            "crosses_prior_strata",
            "has_self_intersection",
            "has_triple_point",
            "monotone_free",
            "returns_to_region",
            "single_stroke"
          ]
        },
        "2": {
          "id": "A00159",
          "score": 5.468,
          "tensions": [
            "has_triple_point+no_cusps"
          ],
          "claims": [
            "crosses_prior_strata",
            "has_self_intersection",
            "has_triple_point",
            "leaves_page",
            "monotone_free",
            "no_cusps",
            "returns_to_region",
            "single_stroke"
          ]
        }
      }
    },
    {
      "task": "P18",
      "quartile": 3,
      "image_1": "png/P18_1.png",
      "image_2": "png/P18_2.png",
      "correct": "2",
      "gap": 2.828,
      "hidden": {
        "1": {
          "id": "A00210",
          "score": 5.357,
          "tensions": [
            "reserve_honoured+crosses_prior_strata"
          ],
          "claims": [
            "crosses_prior_strata",
            "has_self_intersection",
            "has_triple_point",
            "monotone_free",
            "reserve_declared",
            "reserve_honoured",
            "returns_to_region",
            "single_stroke"
          ]
        },
        "2": {
          "id": "A00220",
          "score": 8.185,
          "tensions": [
            "reserve_honoured+space_filling",
            "reserve_honoured+crosses_prior_strata"
          ],
          "claims": [
            "crosses_prior_strata",
            "each_gate_once",
            "has_self_intersection",
            "has_triple_point",
            "leaves_page",
            "monotone_free",
            "reserve_declared",
            "reserve_honoured",
            "returns_to_region",
            "single_stroke",
            "space_filling"
          ]
        }
      }
    },
    {
      "task": "P19",
      "quartile": 3,
      "image_1": "png/P19_1.png",
      "image_2": "png/P19_2.png",
      "correct": "1",
      "gap": 4.214,
      "hidden": {
        "1": {
          "id": "A00182",
          "score": 7.705,
          "tensions": [
            "has_triple_point+no_cusps",
            "reserve_honoured+crosses_prior_strata"
          ],
          "claims": [
            "crosses_prior_strata",
            "has_self_intersection",
            "has_triple_point",
            "monotone_free",
            "no_cusps",
            "reserve_declared",
            "reserve_honoured",
            "returns_to_region",
            "single_stroke"
          ]
        },
        "2": {
          "id": "A00181",
          "score": 3.49,
          "tensions": [],
          "claims": [
            "crosses_prior_strata",
            "each_gate_once",
            "has_self_intersection",
            "has_triple_point",
            "leaves_page",
            "monotone_free",
            "returns_to_region",
            "single_stroke",
            "space_filling"
          ]
        }
      }
    },
    {
      "task": "P20",
      "quartile": 3,
      "image_1": "png/P20_1.png",
      "image_2": "png/P20_2.png",
      "correct": "2",
      "gap": 2.828,
      "hidden": {
        "1": {
          "id": "A00199",
          "score": 5.357,
          "tensions": [
            "reserve_honoured+crosses_prior_strata"
          ],
          "claims": [
            "crosses_prior_strata",
            "has_self_intersection",
            "has_triple_point",
            "monotone_free",
            "reserve_declared",
            "reserve_honoured",
            "returns_to_region",
            "single_stroke"
          ]
        },
        "2": {
          "id": "A00211",
          "score": 8.185,
          "tensions": [
            "reserve_honoured+space_filling",
            "reserve_honoured+crosses_prior_strata"
          ],
          "claims": [
            "crosses_prior_strata",
            "each_gate_once",
            "has_self_intersection",
            "has_triple_point",
            "leaves_page",
            "monotone_free",
            "reserve_declared",
            "reserve_honoured",
            "returns_to_region",
            "single_stroke",
            "space_filling"
          ]
        }
      }
    },
    {
      "task": "P21",
      "quartile": 3,
      "image_1": "png/P21_1.png",
      "image_2": "png/P21_2.png",
      "correct": "2",
      "gap": 2.604,
      "hidden": {
        "1": {
          "id": "A00230",
          "score": 5.357,
          "tensions": [
            "reserve_honoured+crosses_prior_strata"
          ],
          "claims": [
            "crosses_prior_strata",
            "has_self_intersection",
            "has_triple_point",
            "monotone_free",
            "reserve_declared",
            "reserve_honoured",
            "returns_to_region",
            "single_stroke"
          ]
        },
        "2": {
          "id": "A00205",
          "score": 7.961,
          "tensions": [
            "has_triple_point+no_cusps",
            "reserve_honoured+crosses_prior_strata"
          ],
          "claims": [
            "crosses_prior_strata",
            "has_self_intersection",
            "has_triple_point",
            "leaves_page",
            "monotone_free",
            "no_cusps",
            "reserve_declared",
            "reserve_honoured",
            "returns_to_region",
            "single_stroke"
          ]
        }
      }
    },
    {
      "task": "P22",
      "quartile": 3,
      "image_1": "png/P22_1.png",
      "image_2": "png/P22_2.png",
      "correct": "2",
      "gap": 4.474,
      "hidden": {
        "1": {
          "id": "A00222",
          "score": 3.711,
          "tensions": [],
          "claims": [
            "crosses_prior_strata",
            "has_self_intersection",
            "has_triple_point",
            "leaves_page",
            "monotone_free",
            "reserve_declared",
            "returns_to_region",
            "single_stroke",
            "space_filling"
          ]
        },
        "2": {
          "id": "A00220",
          "score": 8.185,
          "tensions": [
            "reserve_honoured+space_filling",
            "reserve_honoured+crosses_prior_strata"
          ],
          "claims": [
            "crosses_prior_strata",
            "each_gate_once",
            "has_self_intersection",
            "has_triple_point",
            "leaves_page",
            "monotone_free",
            "reserve_declared",
            "reserve_honoured",
            "returns_to_region",
            "single_stroke",
            "space_filling"
          ]
        }
      }
    },
    {
      "task": "P23",
      "quartile": 3,
      "image_1": "png/P23_1.png",
      "image_2": "png/P23_2.png",
      "correct": "1",
      "gap": 2.211,
      "hidden": {
        "1": {
          "id": "A00215",
          "score": 7.955,
          "tensions": [
            "reserve_honoured+space_filling",
            "reserve_honoured+crosses_prior_strata"
          ],
          "claims": [
            "crosses_prior_strata",
            "has_self_intersection",
            "has_triple_point",
            "leaves_page",
            "monotone_free",
            "reserve_declared",
            "reserve_honoured",
            "returns_to_region",
            "single_stroke",
            "space_filling"
          ]
        },
        "2": {
          "id": "A00228",
          "score": 5.744,
          "tensions": [
            "reserve_honoured+crosses_prior_strata"
          ],
          "claims": [
            "crosses_prior_strata",
            "each_gate_once",
            "has_self_intersection",
            "has_triple_point",
            "monotone_free",
            "reserve_declared",
            "reserve_honoured",
            "returns_to_region",
            "single_stroke"
          ]
        }
      }
    }
  ]
}