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

Position

White: king e2; knight c5; pawns a4/b4/g2/g3. Black: king f6; bishop b2; pawns b5/f5/g6/h6. Material is balanced. White to move.

Solution (4 moves)

1. Opponent setup: Ba3 — bishop b2→a3. Now White to move.
2. Best move: a5 — pawn a4→a5. Opponent replies Bxb4 (bishop a3→b4, captures pawn).
3. Best move: Nd7+ — knight c5→d7, gives check. Opponent replies Ke6 (king f6→e6).
4. Best move: a6 — pawn a5→a6. Opponent replies Kxd7 (king e6→d7, captures knight).
5. Best move: a7 — pawn a6→a7.

Tactical themes

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

Position data

FEN: 8/8/5kpp/1pN2p2/PP6/6P1/1b2K1P1/8 b - - 0 37

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