Chess Puzzle #BO3yX — Expert, Black to move, middlegame

Position

White: king c1; bishop h5; pawns a3/b2/f3/g3/h2. Black: king b3; pawns a5/b4/c4/d3/f5. White is ahead by 3 points of material. Black to move.

Solution (5 moves)

1. Opponent setup: axb4 — pawn a3→b4, captures pawn. Now Black to move.
2. Best move: d2+ — pawn d3→d2, gives check. Opponent replies Kxd2 (king c1→d2, captures pawn).
3. Best move: Kxb2 — king b3→b2, captures pawn. Opponent replies bxa5 (pawn b4→a5, captures pawn).
4. Best move: c3+ — pawn c4→c3, gives check. Opponent replies Kd3 (king d2→d3).
5. Best move: c2 — pawn c3→c2. Opponent replies a6 (pawn a5→a6).
6. Best move: c1=Q — pawn c2→c1, promotes to queen.

Tactical themes

advanced pawn, advantage, bishop endgame, deflection, endgame, promotion, very long. The key move is d2+.

Position data

FEN: 8/8/8/p4p1B/1pp5/Pk1p1PP1/1P5P/2K5 w - - 0 57

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