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

Position

White: king e1; rook a3; pawns a6/g3. Black: king d4; rook b2; pawns c4/f5/g4. Black is ahead by 1 point of material. White to move.

Solution (3 moves)

1. Opponent setup: c3 — pawn c4→c3. Now White to move.
2. Best move: a7 — pawn a6→a7. Opponent replies Kd3 (king d4→d3).
3. Best move: Rxc3+ — rook a3→c3, captures pawn, gives check. Opponent replies Kxc3 (king d3→c3, captures rook).
4. Best move: a8=Q — pawn a7→a8, promotes to queen.

Tactical themes

advanced pawn, crushing, endgame, long, promotion, rook endgame. The key move Rxc3+ captures with check, forcing a response.

Position data

FEN: 8/8/P7/5p2/2pk2p1/R5P1/1r6/4K3 b - - 0 57

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