Chess Puzzle #6O0WF — Advanced, Black to move, middlegame

Position

White: king g1; queen a7; rooks a1/f1; knight d4; pawns a2/b2/c3/f2/g2/h2. Black: king g8; queen g4; rooks e7/e8; knight f6; pawns c7/f7/g7/h7. White is ahead by 2 points of material. Black to move.

Solution (3 moves)

1. Opponent setup: Qb7 — queen a7→b7. Now Black to move.
2. Best move: c5 — pawn c7→c5. Opponent replies Qf3 (queen b7→f3).
3. Best move: cxd4 — pawn c5→d4, captures knight. Opponent replies Qxg4 (queen f3→g4, captures queen).
4. Best move: Nxg4 — knight f6→g4, captures queen.

Tactical themes

advantage, long, middlegame. The key move is c5.

Position data

FEN: 4r1k1/Q1p1rppp/5n2/8/3N2q1/2P5/PP3PPP/R4RK1 w - - 1 20

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