Chess Puzzle #Gi4kB — Master, Black to move, middlegame

Position

White: king d2; queen a7; rooks d1/e3; bishop d3; pawns a2/c2/g2/h2. Black: king g8; queen f4; bishops c3/f5; pawns a5/f7/g6/h7. White is ahead by 7 points of material. Black to move.

Solution (4 moves)

1. Opponent setup: Ke2 — king d2→e2. Now Black to move.
2. Best move: Bg4+ — bishop f5→g4, gives check. Opponent replies Rf3 (rook e3→f3).
3. Best move: Bxf3+ — bishop g4→f3, captures rook, gives check. Opponent replies gxf3 (pawn g2→f3, captures bishop).
4. Best move: Bd4 — bishop c3→d4. Opponent replies Qxd4 (queen a7→d4, captures bishop).
5. Best move: Qxd4 — queen f4→d4, captures queen.

Tactical themes

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

Position data

FEN: 6k1/Q4p1p/6p1/p4b2/5q2/2bBR3/P1PK2PP/3R4 w - - 4 27

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