Chess Puzzle #oZA5p — Master, Black to move, endgame

Position

White: king f6; pawns f5/g2/g4. Black: king b2; pawns a3/h6. White is ahead by 1 point of material. Black to move.

Solution (3 moves)

1. Opponent setup: Kg6 — king f6→g6. Now Black to move.
2. Best move: a2 — pawn a3→a2. Opponent replies f6 (pawn f5→f6).
3. Best move: a1=Q — pawn a2→a1, promotes to queen. Opponent replies f7 (pawn f6→f7).
4. Best move: Qa3 — queen a1→a3.

Tactical themes

advanced pawn, crushing, defensive move, endgame, long, pawn endgame, promotion. The key move is a2.

Position data

FEN: 8/8/5K1p/5P2/6P1/p7/1k4P1/8 w - - 0 50

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