Chess Puzzle #cHiOA — Master, White to move, endgame

Position

White: king a2; pawns a5/b4/d3. Black: king f5; pawns b7/f6/g7. Material is balanced. White to move.

Solution (6 moves)

1. Opponent setup: Ke5 — king f5→e5. Now White to move.
2. Best move: b5 — pawn b4→b5. Opponent replies Kd6 (king e5→d6).
3. Best move: d4 — pawn d3→d4. Opponent replies g5 (pawn g7→g5).
4. Best move: a6 — pawn a5→a6. Opponent replies bxa6 (pawn b7→a6, captures pawn).
5. Best move: bxa6 — pawn b5→a6, captures pawn. Opponent replies Kc6 (king d6→c6).
6. Best move: d5+ — pawn d4→d5, gives check. Opponent replies Kb6 (king c6→b6).
7. Best move: d6 — pawn d5→d6.

Tactical themes

crushing, endgame, pawn endgame, quiet move, very long. The key move is b5.

Position data

FEN: 8/1p4p1/5p2/P4k2/1P6/3P4/K7/8 b - - 0 41

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