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

Position

White: king b5; queen c6; rook b4; pawns a3/c4/d5. Black: king b8; queen e2; rooks d8/f2; pawns a7/b6/c7/d6/h7. Black is ahead by 7 points of material. White to move.

Solution (5 moves)

1. Opponent setup: a6+ — pawn a7→a6, gives check. Now White to move.
2. Best move: Kxa6 — king b5→a6, captures pawn. Opponent replies Kc8 (king b8→c8).
3. Best move: Rxb6 — rook b4→b6, captures pawn. Opponent replies Qb2 (queen e2→b2).
4. Best move: Qb7+ — queen c6→b7, gives check. Opponent replies Kd7 (king c8→d7).
5. Best move: Rxb2 — rook b6→b2, captures queen. Opponent replies Rxb2 (rook f2→b2, captures rook).
6. Best move: Qxb2 — queen b7→b2, captures rook.

Tactical themes

crushing, discovered attack, endgame, pin, very long. The key move Kxa6 wins material.

Position data

FEN: 1k1r4/p1p4p/1pQp4/1K1P4/1RP5/P7/4qr2/8 b - - 0 37

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