Chess Puzzle #NLd9n — Expert, Black to move, middlegame

Position

White: king g1; queen d1; rooks a2/f1; bishop c4; knight e1; pawns a4/b5/d7/e4/f3. Black: king h7; queen h4; rook c3; bishop f8; knight h5; pawns a7/b7/e5/f4/g3/h6. White is ahead by 4 points of material. Black to move.

Solution (3 moves)

1. Opponent setup: d8=Q — pawn d7→d8, promotes to queen. Now Black to move.
2. Best move: Bc5+ — bishop f8→c5, gives check. Opponent replies Q1d4 (queen d1→d4).
3. Best move: Bxd4+ — bishop c5→d4, captures queen, gives check. Opponent replies Qxd4 (queen d8→d4, captures bishop).
4. Best move: exd4 — pawn e5→d4, captures queen.

Tactical themes

advantage, exposed king, long, master, middlegame. The key move Bxd4+ captures with check, forcing a response.

Position data

FEN: 5b2/pp1P3k/7p/1P2p2n/P1B1Pp1q/2r2Pp1/R7/3QNRK1 w - - 2 30

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