Chess Puzzle #xX9Xa — Master, White to move, middlegame

Position

White: king g2; queen f4; rooks d1/g1; knight f5; pawns a2/d5/e4/f2/h2. Black: king g8; queen c4; rooks b2/f8; bishop e7; pawns c5/d6/f6/g6/h7. Material is balanced. White to move.

Solution (4 moves)

1. Opponent setup: gxf5 — pawn g6→f5, captures knight. Now White to move.
2. Best move: Kh1+ — king g2→h1, gives check. Opponent replies Kh8 (king g8→h8).
3. Best move: Qg3 — queen f4→g3. Opponent replies Qxe4+ (queen c4→e4, captures pawn, gives check).
4. Best move: f3 — pawn f2→f3. Opponent replies Rxh2+ (rook b2→h2, captures pawn, gives check).
5. Best move: Kxh2 — king h1→h2, captures rook.

Tactical themes

advantage, discovered attack, discovered check, middlegame, very long. The key move is Kh1+.

Position data

FEN: 5rk1/4b2p/3p1pp1/2pP1N2/2q1PQ2/8/Pr3PKP/3R2R1 b - - 5 31

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