Chess Puzzle #sXZMq — Expert, Black to move, endgame

Position

White: king g3; rook d3; pawn h5. Black: king e4; bishop b4; pawn a3. White is ahead by 2 points of material. Black to move.

Solution (3 moves)

1. Opponent setup: Rb3 — rook d3→b3. Now Black to move.
2. Best move: Bd6+ — bishop b4→d6, gives check. Opponent replies Kg4 (king g3→g4).
3. Best move: a2 — pawn a3→a2. Opponent replies Rb2 (rook b3→b2).
4. Best move: a1=Q — pawn a2→a1, promotes to queen.

Tactical themes

advanced pawn, crushing, endgame, long, promotion. The key move is Bd6+.

Position data

FEN: 8/8/8/7P/1b2k3/p2R2K1/8/8 w - - 0 56

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