{
 "grid_size": 8,
 "polyominos": [
  {
   "tiles": [
    [
     1,
     3
    ]
   ],
   "piece_type": "MOVABLE",
   "poly_id": 0,
   "color": [
    0,
    0,
    120
   ]
  },
  {
   "tiles": [
    [
     2,
     7
    ]
   ],
   "piece_type": "MOVABLE",
   "poly_id": 1,
   "color": [
    0,
    0,
    120
   ]
  },
  {
   "tiles": [
    [
     3,
     5
    ]
   ],
   "piece_type": "MOVABLE",
   "poly_id": 2,
   "color": [
    0,
    0,
    120
   ]
  },
  {
   "tiles": [
    [
     7,
     6
    ],
    [
     7,
     7
    ]
   ],
   "piece_type": "MOVABLE",
   "poly_id": 3,
   "color": [
    0,
    0,
    120
   ]
  },
  {
   "tiles": [
    [
     1,
     7
    ]
   ],
   "piece_type": "BARRIER"
  },
  {
   "tiles": [
    [
     2,
     3
    ]
   ],
   "piece_type": "BARRIER"
  },
  {
   "tiles": [
    [
     3,
     3
    ]
   ],
   "piece_type": "BARRIER"
  },
  {
   "tiles": [
    [
     3,
     6
    ]
   ],
   "piece_type": "BARRIER"
  },
  {
   "tiles": [
    [
     4,
     3
    ]
   ],
   "piece_type": "BARRIER"
  },
  {
   "tiles": [
    [
     4,
     4
    ]
   ],
   "piece_type": "BARRIER"
  },
  {
   "tiles": [
    [
     4,
     5
    ]
   ],
   "piece_type": "BARRIER"
  },
  {
   "tiles": [
    [
     4,
     6
    ]
   ],
   "piece_type": "BARRIER"
  },
  {
   "tiles": [
    [
     5,
     1
    ]
   ],
   "piece_type": "BARRIER"
  },
  {
   "tiles": [
    [
     5,
     3
    ]
   ],
   "piece_type": "BARRIER"
  },
  {
   "tiles": [
    [
     5,
     4
    ]
   ],
   "piece_type": "BARRIER"
  },
  {
   "tiles": [
    [
     5,
     5
    ]
   ],
   "piece_type": "BARRIER"
  },
  {
   "tiles": [
    [
     5,
     6
    ]
   ],
   "piece_type": "BARRIER"
  },
  {
   "tiles": [
    [
     6,
     1
    ]
   ],
   "piece_type": "BARRIER"
  },
  {
   "tiles": [
    [
     6,
     4
    ]
   ],
   "piece_type": "BARRIER"
  },
  {
   "tiles": [
    [
     7,
     1
    ]
   ],
   "piece_type": "BARRIER"
  }
 ],
 "level_color": [
  0,
  0,
  120
 ],
 "meta": {
  "generator": "random_boards",
  "preset": "8x8/4",
  "tier": "easy",
  "seed": 5179307,
  "floor": 7,
  "soft_flaws": [
   "forgiving: random moves survive the line 75% of the time"
  ],
  "hard_flaws": [],
  "taste": {
   "score": 3,
   "verdict": "tidy",
   "summary": "The central barrier structure is strong, but the right edge has a ragged gap and the bottom edge has an isolated dot that would look more purposeful as a small wall.",
   "issues": [
    {
     "kind": "near_miss",
     "cells": [
      [
       6,
       4
      ]
     ],
     "note": "The barrier at [6,4] is a single cell protruding from the main block, leaving a 1-cell gap from the shell at [7,4]."
    },
    {
     "kind": "ragged_shell",
     "cells": [
      [
       1,
       7
      ]
     ],
     "note": "A lone barrier cell at the bottom edge looks like a stray notch."
    }
   ],
   "suggest_fill": [
    [
     7,
     4
    ],
    [
     0,
     7
    ],
    [
     2,
     7
    ]
   ],
   "suggest_remove": [],
   "model": "gemma4:31b"
  },
  "space": {
   "optimal": 10,
   "states": 6854,
   "dead_frac": 0.288,
   "optimal_lines": 660,
   "progress_frac": 0.338,
   "fatal_frac": 0.028,
   "fatal_merge_frac": 0.222,
   "forced_frac": 0.5,
   "survive_random": 0.75,
   "mean_branching": 7.1,
   "solvable_frac": 0.712
  },
  "id": "daily_2026-10-12_easy",
  "date": "2026-10-12",
  "band": "easy",
  "difficulty_score": -1.239,
  "optimal_len": 10,
  "title": "Oct 12",
  "rev": "07c20f18"
 }
}