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

Position

White: king g2; queen e4; rook a1; bishop c1; knight b5; pawns a2/b2/c2/d4/f2/g3/h4. Black: king c8; queen d1; rook f8; bishop c5; knight f3; pawns a7/b7/c7/g6. White is ahead by 3 points of material. Black to move.

Solution (3 moves)

1. Opponent setup: dxc5 — pawn d4→c5, captures bishop. Now Black to move.
2. Best move: Qg1+ — queen d1→g1, gives check. Opponent replies Kh3 (king g2→h3).
3. Best move: Qh1+ — queen g1→h1, gives check. Opponent replies Kg4 (king h3→g4).
4. Best move: Nh2+ — knight f3→h2, gives check.

Tactical themes

crushing, long, middlegame. The key move is Qg1+.

Position data

FEN: 2k2r2/ppp5/6p1/1Nb5/3PQ2P/5nP1/PPP2PK1/R1Bq4 w - - 3 19

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