stefan-kp
23 lines
804 B
JSON
23 lines
804 B
JSON
{
|
|
"patternType": "OVERLOADING",
|
|
"description": "The defending rook on f8 is overloaded, forced to choose between guarding the back rank and protecting f7.",
|
|
"cases": [
|
|
{
|
|
"id": "overloading_rook_on_f8",
|
|
"initialFen": "5rk1/5p2/8/3Q4/8/8/8/4R1K1 w - - 0 1",
|
|
"sideToMove": "white",
|
|
"bestMove": { "san": "Qxf7+", "uci": "d5f7" },
|
|
"resultingFen": "5rk1/5Q2/8/8/8/8/8/4R1K1 b - - 0 1",
|
|
"expectedPattern": {
|
|
"type": "OVERLOADING",
|
|
"side": "white",
|
|
"attackerSquares": ["f7"],
|
|
"targetSquares": ["f8", "f7"],
|
|
"explanationKey": "back_rank_vs_defense"
|
|
},
|
|
"context": "Capturing on f7 lures the only defender; after ...Rxf7 the back rank collapses to Re8#.",
|
|
"tags": ["overloading", "back_rank_setup"]
|
|
}
|
|
]
|
|
}
|