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

Position

White: king c5; pawns a4/c4. Black: king f5; pawns a5/f6. Material is balanced. White to move.

Solution (6 moves)

1. Opponent setup: Ke4 — king f5→e4. Now White to move.
2. Best move: Kd6 — king c5→d6. Opponent replies f5 (pawn f6→f5).
3. Best move: c5 — pawn c4→c5. Opponent replies f4 (pawn f5→f4).
4. Best move: c6 — pawn c5→c6. Opponent replies f3 (pawn f4→f3).
5. Best move: c7 — pawn c6→c7. Opponent replies f2 (pawn f3→f2).
6. Best move: c8=Q — pawn c7→c8, promotes to queen. Opponent replies f1=Q (pawn f2→f1, promotes to queen).
7. Best move: Qe8+ — queen c8→e8, gives check.

Tactical themes

advanced pawn, crushing, endgame, pawn endgame, promotion, quiet move, very long. The key move is Kd6.

Position data

FEN: 8/8/5p2/p1K2k2/P1P5/8/8/8 b - - 0 57

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