Chess Puzzle #LBlqr — Master, White to move, endgame

Position

White: king e4; pawns d5/f5. Black: king d6; pawns a7/b6. Material is balanced. White to move.

Solution (8 moves)

1. Opponent setup: a5 — pawn a7→a5. Now White to move.
2. Best move: f6 — pawn f5→f6. Opponent replies a4 (pawn a5→a4).
3. Best move: Kf5 — king e4→f5. Opponent replies a3 (pawn a4→a3).
4. Best move: f7 — pawn f6→f7. Opponent replies Ke7 (king d6→e7).
5. Best move: Kg6 — king f5→g6. Opponent replies a2 (pawn a3→a2).
6. Best move: d6+ — pawn d5→d6, gives check. Opponent replies Ke6 (king e7→e6).
7. Best move: f8=Q — pawn f7→f8, promotes to queen. Opponent replies a1=Q (pawn a2→a1, promotes to queen).
8. Best move: Qe7+ — queen f8→e7, gives check. Opponent replies Kd5 (king e6→d5).
9. Best move: d7 — pawn d6→d7.

Tactical themes

advanced pawn, crushing, deflection, endgame, exposed king, pawn endgame, promotion, very long. The key move is f6.

Position data

FEN: 8/p7/1p1k4/3P1P2/4K3/8/8/8 b - - 0 48

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