Chess Puzzle #SP8fQ — Master, White to move, endgame

Position

White: king h2; queen g4; pawns g2/h3. Black: king h6; queen e1; pawns g5/h4. Material is balanced. White to move.

Solution (5 moves)

1. Opponent setup: Qg3+ — queen e1→g3, gives check. Now White to move.
2. Best move: Qxg3 — queen g4→g3, captures queen. Opponent replies hxg3+ (pawn h4→g3, captures queen, gives check).
3. Best move: Kxg3 — king h2→g3, captures pawn. Opponent replies Kh5 (king h6→h5).
4. Best move: Kf2 — king g3→f2. Opponent replies g4 (pawn g5→g4).
5. Best move: Kg3 — king f2→g3. Opponent replies gxh3 (pawn g4→h3, captures pawn).
6. Best move: Kxh3 — king g3→h3, captures pawn.

Tactical themes

crushing, endgame, queen endgame, very long, zugzwang. The key move Qxg3 wins material.

Position data

FEN: 8/8/7k/6p1/6Qp/7P/6PK/4q3 b - - 21 80

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