Chess Puzzle #Q3JEf — Master, Black to move, endgame

Position

White: king f3; pawns a3/b4/e4/f4/g3. Black: king d6; pawns b5/c6/e5/f5/g6. Material is balanced. Black to move.

Solution (6 moves)

1. Opponent setup: g4 — pawn g3→g4. Now Black to move.
2. Best move: fxg4+ — pawn f5→g4, captures pawn, gives check. Opponent replies Kxg4 (king f3→g4, captures pawn).
3. Best move: Ke6 — king d6→e6. Opponent replies Kg5 (king g4→g5).
4. Best move: exf4 — pawn e5→f4, captures pawn. Opponent replies Kxf4 (king g5→f4, captures pawn).
5. Best move: Kf6 — king e6→f6. Opponent replies Kg4 (king f4→g4).
6. Best move: Ke5 — king f6→e5. Opponent replies Kg5 (king g4→g5).
7. Best move: Kxe4 — king e5→e4, captures pawn.

Tactical themes

crushing, endgame, pawn endgame, very long, zugzwang. The key move fxg4+ captures with check, forcing a response.

Position data

FEN: 8/8/2pk2p1/1p2pp2/1P2PP2/P4KP1/8/8 w - - 6 46

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