Chess Puzzle #0sXcN — Master, White to move, endgame

Position

White: king d3; rook a4; pawn g5. Black: king b2; knight b3; pawns a3/b6/c5. Material is balanced. White to move.

Solution (3 moves)

1. Opponent setup: a2 — pawn a3→a2. Now White to move.
2. Best move: Rxa2+ — rook a4→a2, captures pawn, gives check. Opponent replies Kxa2 (king b2→a2, captures rook).
3. Best move: g6 — pawn g5→g6. Opponent replies Kb2 (king a2→b2).
4. Best move: g7 — pawn g6→g7.

Tactical themes

advanced pawn, crushing, endgame, long, sacrifice. The key move Rxa2+ captures with check, forcing a response.

Position data

FEN: 8/8/1p6/2p3P1/R7/pn1K4/1k6/8 b - - 7 56

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