Chess Puzzle #nPYUb — Master, White to move, endgame

Position

White: king h2; queen a8; bishop g2; pawn e3. Black: king a6; queen d7; bishop b4; pawns a5/c3/c5/f7/h6. Black is ahead by 4 points of material. White to move.

Solution (4 moves)

1. Opponent setup: Qa7 — queen d7→a7. Now White to move.
2. Best move: Qc6+ — queen a8→c6, gives check. Opponent replies Qb6 (queen a7→b6).
3. Best move: Qc8+ — queen c6→c8, gives check. Opponent replies Kb5 (king a6→b5).
4. Best move: Qd7+ — queen c8→d7, gives check. Opponent replies Kc4 (king b5→c4).
5. Best move: Qd5+ — queen d7→d5, gives check.

Tactical themes

crushing, endgame, very long. The key move is Qc6+.

Position data

FEN: Q7/3q1p2/k6p/p1p5/1b6/2p1P3/6BK/8 b - - 25 47

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