Chess Puzzle #5NOuW — Advanced, White to move, endgame

Position

White: king c4; pawn a4. Black: king f7; pawn f4. Material is balanced. White to move.

Solution (4 moves)

1. Opponent setup: Kf6 — king f7→f6. Now White to move.
2. Best move: a5 — pawn a4→a5. Opponent replies f3 (pawn f4→f3).
3. Best move: Kd3 — king c4→d3. Opponent replies f2 (pawn f3→f2).
4. Best move: Ke2 — king d3→e2. Opponent replies f1=Q+ (pawn f2→f1, promotes to queen, gives check).
5. Best move: Kxf1 — king e2→f1, captures queen.

Tactical themes

crushing, endgame, pawn endgame, quiet move, very long. The key move is a5.

Position data

FEN: 8/5k2/8/8/P1K2p2/8/8/8 b - - 1 49

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