Solution
45. ♜xb3+ ♚xb3 46. c5+ ♚b2 47. c6
The position
This expert puzzle (rating 2241) asks White to move to find the winning idea. It features these themes: Discovered Attack.
It is White to move. Look for the tactic hiding in the position — Discovered Attack. Drag a piece on the board to play your move; the puzzle will tell you if you found the best continuation.
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