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

Position

White: king g3; queen e7; rook a2; pawns f3/g2. Black: king g8; queen h5; rook d3; pawns f7/g6. Material is balanced. White to move.

Solution (3 moves)

1. Opponent setup: Rd5 — rook d3→d5. Now White to move.
2. Best move: Ra8+ — rook a2→a8, gives check. Opponent replies Kg7 (king g8→g7).
3. Best move: Qf8+ — queen e7→f8, gives check. Opponent replies Kf6 (king g7→f6).
4. Best move: Ra6+ — rook a8→a6, gives check.

Tactical themes

crushing, endgame, long. The key move is Ra8+.

Position data

FEN: 6k1/4Qp2/6p1/7q/8/3r1PK1/R5P1/8 b - - 0 37

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