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

Position

White: king g1; queen a5; rooks a1/d1; knight d4; pawns a2/b4/c3/f2/g3/h2. Black: king b8; queen f6; rook d8; bishops d6/e4; pawns a7/b7/c7/g4/h6. White is ahead by 3 points of material. Black to move.

Solution (5 moves)

1. Opponent setup: Nb5 — knight d4→b5. Now Black to move.
2. Best move: Qf3 — queen f6→f3. Opponent replies Qxa7+ (queen a5→a7, captures pawn, gives check).
3. Best move: Kc8 — king b8→c8. Opponent replies Nxd6+ (knight b5→d6, captures bishop, gives check).
4. Best move: Rxd6 — rook d8→d6, captures knight. Opponent replies Qa8+ (queen a7→a8, gives check).
5. Best move: Kd7 — king c8→d7. Opponent replies Rxd6+ (rook d1→d6, captures rook, gives check).
6. Best move: cxd6 — pawn c7→d6, captures rook.

Tactical themes

advantage, middlegame, very long. The key move is Qf3.

Position data

FEN: 1k1r4/ppp5/3b1q1p/Q7/1P1Nb1p1/2P3P1/P4P1P/R2R2K1 w - - 3 26

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