Chess Puzzle #B9jI0 — Advanced, White to move, endgame

Position

White: king g1; pawns a2/b4/c4/d4. Black: king g3; pawns a7/b6/c6/e6/g4. Black is ahead by 1 point of material. White to move.

Solution (3 moves)

1. Opponent setup: Kf3 — king g3→f3. Now White to move.
2. Best move: b5 — pawn b4→b5. Opponent replies c5 (pawn c6→c5).
3. Best move: dxc5 — pawn d4→c5, captures pawn. Opponent replies bxc5 (pawn b6→c5, captures pawn).
4. Best move: a4 — pawn a2→a4.

Tactical themes

crushing, defensive move, endgame, long, pawn endgame. The key move is b5.

Position data

FEN: 8/p7/1pp1p3/8/1PPP2p1/6k1/P7/6K1 b - - 0 39

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