{
 "grid_size": 10,
 "polyominos": [
  {
   "tiles": [
    [
     3,
     5
    ],
    [
     3,
     6
    ]
   ],
   "piece_type": "MOVABLE",
   "poly_id": 0,
   "color": [
    0,
    110,
    0
   ]
  },
  {
   "tiles": [
    [
     8,
     9
    ],
    [
     9,
     8
    ],
    [
     9,
     9
    ]
   ],
   "piece_type": "MOVABLE",
   "poly_id": 1,
   "color": [
    0,
    110,
    0
   ]
  },
  {
   "tiles": [
    [
     3,
     8
    ],
    [
     4,
     8
    ],
    [
     4,
     9
    ],
    [
     5,
     9
    ]
   ],
   "piece_type": "MOVABLE",
   "poly_id": 2,
   "color": [
    0,
    110,
    0
   ]
  },
  {
   "tiles": [
    [
     1,
     0
    ],
    [
     1,
     1
    ],
    [
     2,
     0
    ],
    [
     2,
     1
    ],
    [
     3,
     0
    ]
   ],
   "piece_type": "MOVABLE",
   "poly_id": 3,
   "color": [
    0,
    110,
    0
   ]
  },
  {
   "tiles": [
    [
     4,
     1
    ],
    [
     5,
     0
    ],
    [
     5,
     1
    ],
    [
     6,
     0
    ],
    [
     6,
     1
    ],
    [
     7,
     0
    ]
   ],
   "piece_type": "MOVABLE",
   "poly_id": 4,
   "color": [
    0,
    110,
    0
   ]
  },
  {
   "tiles": [
    [
     0,
     3
    ]
   ],
   "piece_type": "BARRIER"
  },
  {
   "tiles": [
    [
     0,
     4
    ]
   ],
   "piece_type": "BARRIER"
  },
  {
   "tiles": [
    [
     0,
     5
    ]
   ],
   "piece_type": "BARRIER"
  },
  {
   "tiles": [
    [
     0,
     7
    ]
   ],
   "piece_type": "BARRIER"
  },
  {
   "tiles": [
    [
     2,
     2
    ]
   ],
   "piece_type": "BARRIER"
  },
  {
   "tiles": [
    [
     3,
     2
    ]
   ],
   "piece_type": "BARRIER"
  },
  {
   "tiles": [
    [
     4,
     2
    ]
   ],
   "piece_type": "BARRIER"
  },
  {
   "tiles": [
    [
     4,
     5
    ]
   ],
   "piece_type": "BARRIER"
  },
  {
   "tiles": [
    [
     4,
     6
    ]
   ],
   "piece_type": "BARRIER"
  },
  {
   "tiles": [
    [
     5,
     6
    ]
   ],
   "piece_type": "BARRIER"
  },
  {
   "tiles": [
    [
     6,
     2
    ]
   ],
   "piece_type": "BARRIER"
  },
  {
   "tiles": [
    [
     6,
     3
    ]
   ],
   "piece_type": "BARRIER"
  },
  {
   "tiles": [
    [
     6,
     4
    ]
   ],
   "piece_type": "BARRIER"
  },
  {
   "tiles": [
    [
     6,
     5
    ]
   ],
   "piece_type": "BARRIER"
  },
  {
   "tiles": [
    [
     6,
     6
    ]
   ],
   "piece_type": "BARRIER"
  },
  {
   "tiles": [
    [
     7,
     1
    ]
   ],
   "piece_type": "BARRIER"
  },
  {
   "tiles": [
    [
     7,
     2
    ]
   ],
   "piece_type": "BARRIER"
  },
  {
   "tiles": [
    [
     7,
     3
    ]
   ],
   "piece_type": "BARRIER"
  },
  {
   "tiles": [
    [
     7,
     4
    ]
   ],
   "piece_type": "BARRIER"
  },
  {
   "tiles": [
    [
     7,
     5
    ]
   ],
   "piece_type": "BARRIER"
  },
  {
   "tiles": [
    [
     8,
     0
    ]
   ],
   "piece_type": "BARRIER"
  },
  {
   "tiles": [
    [
     8,
     1
    ]
   ],
   "piece_type": "BARRIER"
  },
  {
   "tiles": [
    [
     8,
     2
    ]
   ],
   "piece_type": "BARRIER"
  },
  {
   "tiles": [
    [
     8,
     3
    ]
   ],
   "piece_type": "BARRIER"
  },
  {
   "tiles": [
    [
     9,
     0
    ]
   ],
   "piece_type": "BARRIER"
  },
  {
   "tiles": [
    [
     9,
     1
    ]
   ],
   "piece_type": "BARRIER"
  },
  {
   "tiles": [
    [
     9,
     2
    ]
   ],
   "piece_type": "BARRIER"
  },
  {
   "tiles": [
    [
     9,
     3
    ]
   ],
   "piece_type": "BARRIER"
  },
  {
   "tiles": [
    [
     9,
     7
    ]
   ],
   "piece_type": "BARRIER"
  }
 ],
 "level_color": [
  0,
  110,
  0
 ],
 "meta": {
  "generator": "mutate_harden",
  "preset": "10x10/5",
  "tier": "medium",
  "seed_optimal": 14,
  "harden_seconds": 32,
  "harden_restarts": 1,
  "hard_target": 29,
  "brutal": false,
  "soft_flaws": [],
  "hard_flaws": [],
  "beautify": {
   "removed": 0,
   "filled": 5
  },
  "taste": {
   "score": 3,
   "verdict": "tidy",
   "summary": "The board has a strong right-side structure, but several isolated barrier cells on the edges and a floating island make it look slightly accidental.",
   "issues": [
    {
     "kind": "near_miss",
     "cells": [
      [
       0,
       7
      ]
     ],
     "note": "Lone barrier cell at the left edge is separated from the main wall structure by a small gap."
    },
    {
     "kind": "near_miss",
     "cells": [
      [
       9,
       7
      ]
     ],
     "note": "Lone barrier cell at the right edge is isolated."
    },
    {
     "kind": "scatter",
     "cells": [
      [
       2,
       2
      ],
      [
       3,
       2
      ],
      [
       4,
       2
      ]
     ],
     "note": "The small island wall is floating in the middle of the board; joining it to the top shell would look more purposeful."
    }
   ],
   "suggest_fill": [
    [
     0,
     6
    ],
    [
     9,
     6
    ],
    [
     3,
     1
    ],
    [
     4,
     1
    ]
   ],
   "suggest_remove": [],
   "model": "gemma4:31b"
  },
  "space": {
   "optimal": 29,
   "states": 5705,
   "dead_frac": 0.945,
   "optimal_lines": 3455040,
   "progress_frac": 0.191,
   "fatal_frac": 0.578,
   "fatal_merge_frac": 0.915,
   "forced_frac": 0.379,
   "survive_random": 0.0,
   "mean_branching": 8.66,
   "solvable_frac": 0.055,
   "min_carry": 3,
   "carry_frac": 0.103
  },
  "id": "daily_2026-10-27_medium",
  "date": "2026-10-27",
  "band": "medium",
  "difficulty_score": 0.533,
  "optimal_len": 29,
  "title": "Oct 27",
  "rev": "b90a31f4"
 }
}