Chess Puzzle #tAU90 — Expert, White to move, middlegame

Position

White: king g1; queen c6; rook e1; knight g6; pawns f2/g3/h2. Black: king g8; queen b3; rooks a8/f7; pawns a3/e6/g7/h6. Black is ahead by 3 points of material. White to move.

Solution (4 moves)

1. Opponent setup: Qb4 — queen b3→b4. Now White to move.
2. Best move: Qxa8+ — queen c6→a8, captures rook, gives check. Opponent replies Kh7 (king g8→h7).
3. Best move: Rxe6 — rook e1→e6, captures pawn. Opponent replies Qb1+ (queen b4→b1, gives check).
4. Best move: Kg2 — king g1→g2. Opponent replies Qb7+ (queen b1→b7, gives check).
5. Best move: Qxb7 — queen a8→b7, captures queen.

Tactical themes

advantage, endgame, hanging piece, very long. The key move Qxa8+ captures with check, forcing a response.

Position data

FEN: r5k1/5rp1/2Q1p1Np/8/8/pq4P1/5P1P/4R1K1 b - - 3 32

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