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

Position

White: king h5; rook a6; pawns b6/g3/h2. Black: king e7; rook e6; knight e3; pawns d5/f7. Black is ahead by 2 points of material. White to move.

Solution (3 moves)

1. Opponent setup: Kd8 — king e7→d8. Now White to move.
2. Best move: Ra8+ — rook a6→a8, gives check. Opponent replies Ke7 (king d8→e7).
3. Best move: b7 — pawn b6→b7. Opponent replies Re5+ (rook e6→e5, gives check).
4. Best move: Kh4 — king h5→h4.

Tactical themes

advanced pawn, advantage, endgame, long. The key move is Ra8+.

Position data

FEN: 8/4kp2/RP2r3/3p3K/8/4n1P1/7P/8 b - - 2 40

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