Chess Puzzle #VwvF5 — Master, White to move, endgame

Position

White: king c3; pawns c5/f4. Black: king d7; pawns b5/f5/g6. Black is ahead by 1 point of material. White to move.

Solution (6 moves)

1. Opponent setup: Kc6 — king d7→c6. Now White to move.
2. Best move: Kb4 — king c3→b4. Opponent replies g5 (pawn g6→g5).
3. Best move: fxg5 — pawn f4→g5, captures pawn. Opponent replies f4 (pawn f5→f4).
4. Best move: g6 — pawn g5→g6. Opponent replies f3 (pawn f4→f3).
5. Best move: g7 — pawn g6→g7. Opponent replies f2 (pawn f3→f2).
6. Best move: g8=Q — pawn g7→g8, promotes to queen. Opponent replies f1=Q (pawn f2→f1, promotes to queen).
7. Best move: Qc8+ — queen g8→c8, gives check.

Tactical themes

advanced pawn, crushing, endgame, pawn endgame, promotion, very long, zugzwang. The key move is Kb4.

Position data

FEN: 8/3k4/6p1/1pP2p2/5P2/2K5/8/8 b - - 4 52

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