Chess Puzzle #JHbNR — Expert, Black to move, endgame

Position

White: king c3; pawns a4/c5/e4/g4. Black: king e5; pawns a5/f3/g5. White is ahead by 1 point of material. Black to move.

Solution (4 moves)

1. Opponent setup: Kd3 — king c3→d3. Now Black to move.
2. Best move: Kf4 — king e5→f4. Opponent replies c6 (pawn c5→c6).
3. Best move: Kg3 — king f4→g3. Opponent replies c7 (pawn c6→c7).
4. Best move: f2 — pawn f3→f2. Opponent replies c8=Q (pawn c7→c8, promotes to queen).
5. Best move: f1=Q+ — pawn f2→f1, promotes to queen, gives check.

Tactical themes

advanced pawn, endgame, equality, pawn endgame, promotion, very long. The key move is Kf4.

Position data

FEN: 8/8/8/p1P1k1p1/P3P1P1/2K2p2/8/8 w - - 0 54

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