Chess Puzzle #ZdoUf — Expert, Black to move, middlegame

Position

White: king d4; pawns a3/b2/c3/e5/f4/g3. Black: king b6; pawns a4/b3/b5/e6/f5/g4. Material is balanced. Black to move.

Solution (4 moves)

1. Opponent setup: c4 — pawn c3→c4. Now Black to move.
2. Best move: b4 — pawn b5→b4. Opponent replies Kd3 (king d4→d3).
3. Best move: Kc5 — king b6→c5. Opponent replies axb4+ (pawn a3→b4, captures pawn, gives check).
4. Best move: Kxb4 — king c5→b4, captures pawn. Opponent replies Kd4 (king d3→d4).
5. Best move: a3 — pawn a4→a3.

Tactical themes

crushing, endgame, pawn endgame, very long. The key move is b4.

Position data

FEN: 8/8/1k2p3/1p2Pp2/p2K1Pp1/PpP3P1/1P6/8 w - - 4 46

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