Chess Puzzle #Km3ar — Advanced, Black to move, endgame

Position

White: king g7; pawns a3/b4/d4/g5. Black: king e6; pawns a4/c6/d5/f4. Material is balanced. Black to move.

Solution (5 moves)

1. Opponent setup: Kh7 — king g7→h7. Now Black to move.
2. Best move: f3 — pawn f4→f3. Opponent replies g6 (pawn g5→g6).
3. Best move: f2 — pawn f3→f2. Opponent replies g7 (pawn g6→g7).
4. Best move: f1=Q — pawn f2→f1, promotes to queen. Opponent replies g8=Q+ (pawn g7→g8, promotes to queen, gives check).
5. Best move: Qf7+ — queen f1→f7, gives check. Opponent replies Qxf7+ (queen g8→f7, captures queen, gives check).
6. Best move: Kxf7 — king e6→f7, captures queen.

Tactical themes

advanced pawn, crushing, endgame, pawn endgame, promotion, very long. The key move is f3.

Position data

FEN: 8/6K1/2p1k3/3p2P1/pP1P1p2/P7/8/8 w - - 0 62

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