Chess Puzzle #H12sg — Master, White to move, middlegame

Position

White: king h1; queen e8; rooks d1/g4; pawns e4/f5/g2/h3. Black: king h7; queen c4; rooks c3/c7; pawns a4/b5/e5/f6/g7/h6. Black is ahead by 2 points of material. White to move.

Solution (6 moves)

1. Opponent setup: a3 — pawn a4→a3. Now White to move.
2. Best move: Qg6+ — queen e8→g6, gives check. Opponent replies Kh8 (king h7→h8).
3. Best move: Rd8+ — rook d1→d8, gives check. Opponent replies Qg8 (queen c4→g8).
4. Best move: Rxg8+ — rook d8→g8, captures queen, gives check. Opponent replies Kxg8 (king h8→g8, captures rook).
5. Best move: Qxf6 — queen g6→f6, captures pawn. Opponent replies a2 (pawn a3→a2).
6. Best move: Qe6+ — queen f6→e6, gives check. Opponent replies Kh7 (king g8→h7).
7. Best move: Qxa2 — queen e6→a2, captures pawn.

Tactical themes

crushing, endgame, pin, very long. The key move Rxg8+ captures with check, forcing a response.

Position data

FEN: 4Q3/2r3pk/5p1p/1p2pP2/p1q1P1R1/2r4P/6P1/3R3K b - - 1 37

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