Chess Puzzle #GjdQX — Advanced, Black to move, endgame

Position

White: king f1; queen e1; pawns a2/b3/e6/g3/g5. Black: king g8; rooks b2/h2; pawns f7/h7. White is ahead by 2 points of material. Black to move.

Solution (4 moves)

1. Opponent setup: exf7+ — pawn e6→f7, captures pawn, gives check. Now Black to move.
2. Best move: Kxf7 — king g8→f7, captures pawn. Opponent replies Qe4 (queen e1→e4).
3. Best move: Rb1+ — rook b2→b1, gives check. Opponent replies Qxb1 (queen e4→b1, captures rook).
4. Best move: Rh1+ — rook h2→h1, gives check. Opponent replies Ke2 (king f1→e2).
5. Best move: Rxb1 — rook h1→b1, captures queen.

Tactical themes

crushing, endgame, exposed king, queen rook endgame, sacrifice, skewer, very long. The key move Kxf7 wins material.

Position data

FEN: 6k1/5p1p/4P3/6P1/8/1P4P1/Pr5r/4QK2 w - - 0 40

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