Chess Puzzle #GsrOY — Expert, White to move, endgame

Position

White: king b6; pawns a6/b4/f3/g2/h3. Black: king c8; bishop c3; pawns f5/g6/h5. Black is ahead by 1 point of material. White to move.

Solution (4 moves)

1. Opponent setup: Kb8 — king c8→b8. Now White to move.
2. Best move: a7+ — pawn a6→a7, gives check. Opponent replies Ka8 (king b8→a8).
3. Best move: b5 — pawn b4→b5. Opponent replies Bd4+ (bishop c3→d4, gives check).
4. Best move: Ka6 — king b6→a6. Opponent replies Bxa7 (bishop d4→a7, captures pawn).
5. Best move: b6 — pawn b5→b6.

Tactical themes

advanced pawn, bishop endgame, crushing, endgame, quiet move, very long. The key move is a7+.

Position data

FEN: 2k5/8/PK4p1/5p1p/1P6/2b2P1P/6P1/8 b - - 2 56

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