Chess Puzzle #mo6fZ — Expert, White to move, endgame

Position

White: king g4; queen d6; bishop e7; pawns e5/f3. Black: king a6; queen h6; rook h3; pawns b5/e6. Black is ahead by 2 points of material. White to move.

Solution (3 moves)

1. Opponent setup: Ka5 — king a6→a5. Now White to move.
2. Best move: Qa3+ — queen d6→a3, gives check. Opponent replies Kb6 (king a5→b6).
3. Best move: Bd8+ — bishop e7→d8, gives check. Opponent replies Kb7 (king b6→b7).
4. Best move: Qe7+ — queen a3→e7, gives check.

Tactical themes

crushing, endgame, long. The key move is Qa3+.

Position data

FEN: 8/4B3/k2Qp2q/1p2P3/6K1/5P1r/8/8 b - - 5 57

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