Chess Puzzle #VPURj — Advanced, Black to move, endgame

Position

White: king b5; pawns a2/c3/g4/h4. Black: king f4; pawns a5/c7/g6/h7. Material is balanced. Black to move.

Solution (7 moves)

1. Opponent setup: Kxa5 — king b5→a5, captures pawn. Now Black to move.
2. Best move: Kxg4 — king f4→g4, captures pawn. Opponent replies a4 (pawn a2→a4).
3. Best move: Kxh4 — king g4→h4, captures pawn. Opponent replies Kb4 (king a5→b4).
4. Best move: g5 — pawn g6→g5. Opponent replies a5 (pawn a4→a5).
5. Best move: g4 — pawn g5→g4. Opponent replies a6 (pawn a5→a6).
6. Best move: g3 — pawn g4→g3. Opponent replies a7 (pawn a6→a7).
7. Best move: g2 — pawn g3→g2. Opponent replies a8=Q (pawn a7→a8, promotes to queen).
8. Best move: g1=Q — pawn g2→g1, promotes to queen.

Tactical themes

advanced pawn, endgame, equality, pawn endgame, promotion, quiet move, very long. The key move Kxg4 wins material.

Position data

FEN: 8/2p4p/6p1/pK6/5kPP/2P5/P7/8 w - - 4 36

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