Chess Puzzle #Ktzf3 — Advanced, White to move, endgame

Position

White: king c2; pawns a4/b4/c4. Black: king f3; pawns a5/c5/f4. Material is balanced. White to move.

Solution (4 moves)

1. Opponent setup: Kg2 — king f3→g2. Now White to move.
2. Best move: bxa5 — pawn b4→a5, captures pawn. Opponent replies Kh2 (king g2→h2).
3. Best move: a6 — pawn a5→a6. Opponent replies f3 (pawn f4→f3).
4. Best move: a7 — pawn a6→a7. Opponent replies f2 (pawn f3→f2).
5. Best move: a8=Q — pawn a7→a8, promotes to queen.

Tactical themes

advanced pawn, crushing, endgame, pawn endgame, promotion, very long. The key move bxa5 wins material.

Position data

FEN: 8/8/8/p1p5/PPP2p2/5k2/2K5/8 b - - 0 67

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