Chess Puzzle #SpD3Q — Master, Black to move, middlegame

Position

White: king g1; queen d1; rooks a1/f1; knight b1; pawns a2/b2/c3/e3/f2/g2. Black: king c8; queen f5; rook h8; bishop h2; knight f6; pawns a7/b7/c7/d5/h7. White is ahead by 3 points of material. Black to move.

Solution (4 moves)

1. Opponent setup: Kxh2 — king g1→h2, captures bishop. Now Black to move.
2. Best move: Ng4+ — knight f6→g4, gives check. Opponent replies Kg1 (king h2→g1).
3. Best move: Qh5 — queen f5→h5. Opponent replies Re1 (rook f1→e1).
4. Best move: Rf8 — rook h8→f8. Opponent replies Qxg4+ (queen d1→g4, captures knight, gives check).
5. Best move: Qxg4 — queen h5→g4, captures queen.

Tactical themes

advantage, middlegame, quiet move, very long. The key move is Ng4+.

Position data

FEN: 2k4r/ppp4p/5n2/3p1q2/8/2P1P3/PP3PPb/RN1Q1RK1 w - - 0 15

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