Chess Puzzle #AUD6i — Advanced, White to move, middlegame

Position

White: king e1; queen e5; rooks a1/h1; bishop d3; pawns b2/b3/c2/f2/h2. Black: king b8; queen f3; rooks d8/h8; bishop f8; knight f4; pawns a6/b7/e7/f7/g7/h7. Black is ahead by 4 points of material. White to move.

Solution (3 moves)

1. Opponent setup: Ka8 — king b8→a8. Now White to move.
2. Best move: Rxa6+ — rook a1→a6, captures pawn, gives check. Opponent replies bxa6 (pawn b7→a6, captures rook).
3. Best move: Be4+ — bishop d3→e4, gives check. Opponent replies Qxe4+ (queen f3→e4, captures bishop, gives check).
4. Best move: Qxe4+ — queen e5→e4, captures queen, gives check.

Tactical themes

advantage, fork, long, middlegame, sacrifice. The key move Rxa6+ captures with check, forcing a response.

Position data

FEN: 1k1r1b1r/1p2pppp/p7/4Q3/5n2/1P1B1q2/1PP2P1P/R3K2R b KQ - 3 20

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