Chess Puzzle #I9KBN — Advanced, Black to move, middlegame

Position

White: king g2; queen f1; rooks a1/e1; bishop d3; knights d2/f3; pawns a2/b2/c2/f2. Black: king g8; queen f4; rooks e8/f8; bishops d6/h5; pawns a7/d4/d5/f7/g7/h7. White is ahead by 1 point of material. Black to move.

Solution (3 moves)

1. Opponent setup: Rxe8 — rook e1→e8, captures rook. Now Black to move.
2. Best move: Bxf3+ — bishop h5→f3, captures knight, gives check. Opponent replies Nxf3 (knight d2→f3, captures bishop).
3. Best move: Qg4+ — queen f4→g4, gives check. Opponent replies Kh1 (king g2→h1).
4. Best move: Qxf3+ — queen g4→f3, captures knight, gives check.

Tactical themes

advantage, deflection, long, middlegame. The key move Bxf3+ captures with check, forcing a response.

Position data

FEN: 4rrk1/p4ppp/3b4/3p3b/3p1q2/3B1N2/PPPN1PK1/R3RQ2 w - - 8 26

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