Chess Puzzle #yrdak — Expert, White to move, endgame

Position

White: king c1; pawns a4/b6. Black: king f4; knight d6; pawns f7/g7. Black is ahead by 3 points of material. White to move.

Solution (5 moves)

1. Opponent setup: Ke5 — king f4→e5. Now White to move.
2. Best move: a5 — pawn a4→a5. Opponent replies Kd5 (king e5→d5).
3. Best move: b7 — pawn b6→b7. Opponent replies Nxb7 (knight d6→b7, captures pawn).
4. Best move: a6 — pawn a5→a6. Opponent replies Nd8 (knight b7→d8).
5. Best move: a7 — pawn a6→a7. Opponent replies Ne6 (knight d8→e6).
6. Best move: a8=Q+ — pawn a7→a8, promotes to queen, gives check.

Tactical themes

advanced pawn, crushing, endgame, knight endgame, promotion, quiet move, very long. The key move is a5.

Position data

FEN: 8/5pp1/1P1n4/8/P4k2/8/8/2K5 b - - 0 47

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