stefan-kp
23 lines
733 B
JSON
23 lines
733 B
JSON
{
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"patternType": "BACK_RANK_WEAKNESS",
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"description": "Classic back-rank mate with no escape squares for the king.",
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"cases": [
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{
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"id": "back_rank_rook_mate",
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"initialFen": "6k1/5ppp/8/8/8/8/5PPP/R5K1 w - - 0 1",
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"sideToMove": "white",
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"bestMove": { "san": "Ra8#", "uci": "a1a8" },
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"resultingFen": "R5k1/5ppp/8/8/8/8/5PPP/6K1 b - - 1 1",
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"expectedPattern": {
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"type": "BACK_RANK_WEAKNESS",
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"side": "white",
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"attackerSquares": ["a8"],
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"targetSquares": ["g8"],
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"explanationKey": "back_rank_mate"
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},
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"context": "No luft and the king is boxed in; the rook delivers mate on the back rank.",
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"tags": ["mate", "fundamental"]
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}
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]
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}
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