Chess Puzzle #QbNXK — Master, White to move, endgame

Position

White: king g2; rook a7; pawns e7/h4. Black: king g4; rook e4; pawns a4/g6/h5. Black is ahead by 1 point of material. White to move.

Solution (4 moves)

1. Opponent setup: Kxh4 — king g4→h4, captures pawn. Now White to move.
2. Best move: Kf3 — king g2→f3. Opponent replies Re6 (rook e4→e6).
3. Best move: Rxa4+ — rook a7→a4, captures pawn, gives check. Opponent replies Kg5 (king h4→g5).
4. Best move: Re4 — rook a4→e4. Opponent replies Rxe7 (rook e6→e7, captures pawn).
5. Best move: Rxe7 — rook e4→e7, captures rook.

Tactical themes

crushing, endgame, rook endgame, very long. The key move Rxa4+ captures with check, forcing a response.

Position data

FEN: 8/R3P3/6p1/7p/p3r1kP/8/6K1/8 b - - 0 47

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