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

Position

White: king g1; queen d6; rooks a1/e1; bishop e4; pawns a2/b4/c4/f2/g3/h2. Black: king h8; queen g5; rook d8; bishop h3; knight d4; pawns a6/b7/e5/g7/h6. White is ahead by 3 points of material. Black to move.

Solution (4 moves)

1. Opponent setup: Qg6 — queen d6→g6. Now Black to move.
2. Best move: Nf3+ — knight d4→f3, gives check. Opponent replies Kh1 (king g1→h1).
3. Best move: Bg2+ — bishop h3→g2, gives check. Opponent replies Kxg2 (king h1→g2, captures bishop).
4. Best move: Nh4+ — knight f3→h4, gives check. Opponent replies Kf1 (king g2→f1).
5. Best move: Nxg6 — knight h4→g6, captures queen.

Tactical themes

advantage, attraction, kingside attack, middlegame, pin, sacrifice, very long. The key move is Nf3+.

Position data

FEN: 3r3k/1p4p1/p2Q3p/4p1q1/1PPnB3/6Pb/P4P1P/R3R1K1 w - - 1 29

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