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

Position

White: king c2; pawns a2/b4/e4/g2/g6. Black: king f6; pawns a3/f4/h4. White is ahead by 2 points of material. Black to move.

Solution (5 moves)

1. Opponent setup: b5 — pawn b4→b5. Now Black to move.
2. Best move: f3 — pawn f4→f3. Opponent replies gxf3 (pawn g2→f3, captures pawn).
3. Best move: h3 — pawn h4→h3. Opponent replies g7 (pawn g6→g7).
4. Best move: Kxg7 — king f6→g7, captures pawn. Opponent replies b6 (pawn b5→b6).
5. Best move: h2 — pawn h3→h2. Opponent replies b7 (pawn b6→b7).
6. Best move: h1=Q — pawn h2→h1, promotes to queen.

Tactical themes

advanced pawn, endgame, equality, pawn endgame, promotion, very long. The key move is f3.

Position data

FEN: 8/8/5kP1/8/1P2Pp1p/p7/P1K3P1/8 w - - 1 40

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