Chess Puzzle #HgmWm — Expert, Black to move, middlegame

Position

White: king g1; queen c3; rooks e7/f1; knight d7; pawns a2/b2/c4/f2/g2. Black: king g8; queen g5; rooks h2/h8; pawns a7/b7/c7/f6. White is ahead by 4 points of material. Black to move.

Solution (4 moves)

1. Opponent setup: Re8+ — rook e7→e8, gives check. Now Black to move.
2. Best move: Kf7 — king g8→f7. Opponent replies Rf8+ (rook e8→f8, gives check).
3. Best move: Kg7 — king f7→g7. Opponent replies Qxf6+ (queen c3→f6, captures pawn, gives check).
4. Best move: Qxf6 — queen g5→f6, captures queen. Opponent replies Rxh8 (rook f8→h8, captures rook).
5. Best move: Rxg2+ — rook h2→g2, captures pawn, gives check.

Tactical themes

advantage, defensive move, middlegame, very long. The key move Rxg2+ captures with check, forcing a response.

Position data

FEN: 6kr/pppNR3/5p2/6q1/2P5/2Q5/PP3PPr/5RK1 w - - 2 26

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