Chess Puzzle #S4Kjd — Master, Black to move, middlegame

Position

White: king g2; queen c2; rooks c1/f1; knight d2; pawns a3/b4/d4/e3/f2/g3/h2. Black: king g8; queen e6; rook c8; bishop d6; knight g5; pawns a6/b7/c6/d5/f7/g7/h6. White is ahead by 2 points of material. Black to move.

Solution (4 moves)

1. Opponent setup: h4 — pawn h2→h4. Now Black to move.
2. Best move: Qh3+ — queen e6→h3, gives check. Opponent replies Kg1 (king g2→g1).
3. Best move: Bxg3 — bishop d6→g3, captures pawn. Opponent replies fxg3 (pawn f2→g3, captures bishop).
4. Best move: Qxg3+ — queen h3→g3, captures pawn, gives check. Opponent replies Kh1 (king g1→h1).
5. Best move: Qh3+ — queen g3→h3, gives check.

Tactical themes

crushing, deflection, middlegame, very long. The key move Qxg3+ captures with check, forcing a response.

Position data

FEN: 2r3k1/1p3pp1/p1pbq2p/3p2n1/1P1P4/P3P1P1/2QN1PKP/2R2R2 w - - 5 26

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