Chess Puzzle #5sYgI — Advanced, White to move, endgame

Position

White: king g1; rook a1; pawns b7/c4. Black: king d6; bishop e6; knight e7; pawns c5/g7/h7. Black is ahead by 2 points of material. White to move.

Solution (3 moves)

1. Opponent setup: Nc6 — knight e7→c6. Now White to move.
2. Best move: Ra6 — rook a1→a6. Opponent replies Kd7 (king d6→d7).
3. Best move: Rxc6 — rook a6→c6, captures knight. Opponent replies Kxc6 (king d7→c6, captures rook).
4. Best move: b8=Q — pawn b7→b8, promotes to queen.

Tactical themes

advanced pawn, advantage, endgame, long, promotion. The key move is Ra6.

Position data

FEN: 8/1P2n1pp/3kb3/2p5/2P5/8/8/R5K1 b - - 0 34

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