Chess Puzzle #Bkdg9 — Master, Black to move, middlegame

Position

White: king g1; queen d3; rooks a1/f1; bishop b5; pawns a2/b3/f2/g2/h2. Black: king h8; queen d6; rook f8; bishop b7; knight d4; pawns a5/e4/g7/h7. White is ahead by 3 points of material. Black to move.

Solution (5 moves)

1. Opponent setup: Qc4 — queen d3→c4. Now Black to move.
2. Best move: Nf3+ — knight d4→f3, gives check. Opponent replies gxf3 (pawn g2→f3, captures knight).
3. Best move: Qg6+ — queen d6→g6, gives check. Opponent replies Kh1 (king g1→h1).
4. Best move: e3 — pawn e4→e3. Opponent replies fxe3 (pawn f2→e3, captures pawn).
5. Best move: Rxf3 — rook f8→f3, captures pawn. Opponent replies Qc8+ (queen c4→c8, gives check).
6. Best move: Bxc8 — bishop b7→c8, captures queen.

Tactical themes

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

Position data

FEN: 5r1k/1b4pp/3q4/pB6/3np3/1P1Q4/P4PPP/R4RK1 w - - 0 27

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