Chess Puzzle #gZ9du — Master, Black to move, middlegame

Position

White: king c1; queen b7; rook h1; bishop b8; pawns a2/b2/c3/e4/g3. Black: king d8; queen d6; bishops c6/e5; pawns b6/c7/f6/g4/g6. White is ahead by 2 points of material. Black to move.

Solution (4 moves)

1. Opponent setup: Qa7 — queen b7→a7. Now Black to move.
2. Best move: Bf4+ — bishop e5→f4, gives check. Opponent replies gxf4 (pawn g3→f4, captures bishop).
3. Best move: Qxf4+ — queen d6→f4, captures pawn, gives check. Opponent replies Kd1 (king c1→d1).
4. Best move: Qf3+ — queen f4→f3, gives check. Opponent replies Kc2 (king d1→c2).
5. Best move: Qxe4+ — queen f3→e4, captures pawn, gives check.

Tactical themes

crushing, endgame, fork, sacrifice, very long. The key move Qxf4+ captures with check, forcing a response.

Position data

FEN: 1B1k4/1Qp5/1pbq1pp1/4b3/4P1p1/2P3P1/PP6/2K4R w - - 1 29

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