Chess Puzzle #0fyLE — Intermediate, Black to move, middlegame

Position

White: king g1; queen d4; rook e1; bishop h8; pawns a4/b4/f2/g3/h3. Black: king g8; queen g5; rook h6; pawns b6/c7/e4/f3/h7. White is ahead by 3 points of material. Black to move.

Solution (4 moves)

1. Opponent setup: Kh2 — king g1→h2. Now Black to move.
2. Best move: Rxh3+ — rook h6→h3, captures pawn, gives check. Opponent replies Kg1 (king h2→g1).
3. Best move: Rxg3+ — rook h3→g3, captures pawn, gives check. Opponent replies fxg3 (pawn f2→g3, captures rook).
4. Best move: Qxg3+ — queen g5→g3, captures pawn, gives check. Opponent replies Kf1 (king g1→f1).
5. Best move: Qg2# — queen g3→g2, delivers checkmate.

Tactical themes

deflection, endgame, fork, mate, mate in 4, sacrifice, very long. The combination ends with Qg2# delivering checkmate.

Position data

FEN: 6kB/2p4p/1p5r/6q1/PP1Qp3/5pPP/5P2/4R1K1 w - - 1 33

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