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

Position

White: king h2; queen d7; rook e1; knight f3; pawns a2/b2/c3/d4/f2/g2/g3. Black: king g7; queen g4; rook e6; bishop e4; pawns b5/d5/f5/f7/h7. White is ahead by 2 points of material. Black to move.

Solution (4 moves)

1. Opponent setup: Ne5 — knight f3→e5. Now Black to move.
2. Best move: Rh6+ — rook e6→h6, gives check. Opponent replies Kg1 (king h2→g1).
3. Best move: Rh1+ — rook h6→h1, gives check. Opponent replies Kxh1 (king g1→h1, captures rook).
4. Best move: Qh3+ — queen g4→h3, gives check. Opponent replies Kg1 (king h1→g1).
5. Best move: Qxg2# — queen h3→g2, captures pawn, delivers checkmate.

Tactical themes

attraction, endgame, mate, mate in 4, pin, sacrifice, very long. The combination ends with Qxg2# delivering checkmate.

Position data

FEN: 8/3Q1pkp/4r3/1p1p1p2/3Pb1q1/2P2NP1/PP3PPK/4R3 w - - 1 30

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