{
  "patternType": "TRAPPED_PIECE",
  "description": "Illustrates a bishop trapped in the corner with no safe squares.",
  "cases": [
    {
      "id": "trapped_corner_bishop",
      "initialFen": "6kb/6P1/5K2/8/8/8/8/8 w - - 0 1",
      "sideToMove": "white",
      "bestMove": { "san": "gxh8=Q+", "uci": "g7h8q" },
      "resultingFen": "6kQ/8/5K2/8/8/8/8/8 b - - 0 1",
      "expectedPattern": {
        "type": "TRAPPED_PIECE",
        "side": "white",
        "attackerSquares": ["g7"],
        "targetSquares": ["h8"],
        "explanationKey": "corner_trap"
      },
      "context": "The black bishop on h8 cannot escape because of the pawn on g7 and the king on f6.",
      "tags": ["endgame", "conversion"]
    }
  ]
}