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

Position

White: king g2; queen b3; rook h1; pawns a2/b2/c4/c5/e4/f5/g3/h2. Black: king c8; queen h3; rook h8; pawns a7/b7/d6/f4/f7. White is ahead by 3 points of material. Black to move.

Solution (4 moves)

1. Opponent setup: Kg1 — king g2→g1. Now Black to move.
2. Best move: Rg8 — rook h8→g8. Opponent replies cxd6 (pawn c5→d6, captures pawn).
3. Best move: fxg3 — pawn f4→g3, captures pawn. Opponent replies hxg3 (pawn h2→g3, captures pawn).
4. Best move: Rxg3+ — rook g8→g3, captures pawn, gives check. Opponent replies Qxg3 (queen b3→g3, captures rook).
5. Best move: Qxg3+ — queen h3→g3, captures queen, gives check.

Tactical themes

crushing, endgame, fork, pin, very long. The key move Rxg3+ captures with check, forcing a response.

Position data

FEN: 2k4r/pp3p2/3p4/2P2P2/2P1Pp2/1Q4Pq/PP4KP/7R w - - 3 26

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