Chess Puzzle #GPaBH — Advanced, Black to move, middlegame

Position

White: king g1; queen b7; rooks d1/f1; bishop c2; knight e7; pawns a3/c3/d6/f3/g2/h2. Black: king h8; queen f6; rooks a8/f8; bishop h3; knight f4; pawns a6/b5/c4/f7/g7/h6. Material is balanced. Black to move.

Solution (4 moves)

1. Opponent setup: gxh3 — pawn g2→h3, captures bishop. Now Black to move.
2. Best move: Qg5+ — queen f6→g5, gives check. Opponent replies Kf2 (king g1→f2).
3. Best move: Nxh3+ — knight f4→h3, captures pawn, gives check. Opponent replies Ke2 (king f2→e2).
4. Best move: Qg2+ — queen g5→g2, gives check. Opponent replies Ke3 (king e2→e3).
5. Best move: Qxc2 — queen g2→c2, captures bishop.

Tactical themes

advantage, intermezzo, kingside attack, middlegame, skewer, very long. The key move Nxh3+ captures with check, forcing a response.

Position data

FEN: r4r1k/1Q2Npp1/p2P1q1p/1p6/2p2n2/P1P2P1b/2B3PP/3R1RK1 w - - 1 25

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