Chess Puzzle #6oZue — Expert, White to move, middlegame

Position

White: king a1; queen g2; pawns a3/b2/d6/f5. Black: king g8; queen c4; knight g5; pawns a6/b7/f6/h6/h7. Black is ahead by 4 points of material. White to move.

Solution (3 moves)

1. Opponent setup: Kf7 — king g8→f7. Now White to move.
2. Best move: Qxb7+ — queen g2→b7, captures pawn, gives check. Opponent replies Kg8 (king f7→g8).
3. Best move: Qb8+ — queen b7→b8, gives check. Opponent replies Kg7 (king g8→g7).
4. Best move: Qc7+ — queen b8→c7, gives check.

Tactical themes

crushing, endgame, long. The key move Qxb7+ captures with check, forcing a response.

Position data

FEN: 6k1/1p5p/p2P1p1p/5Pn1/2q5/P7/1P4Q1/K7 b - - 2 36

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