Solution
47. c6+ ♚c8 48. d6 bxc6 49. d7+ ♚xd7 50. b7
The position
This expert puzzle (rating 2241) asks White to move to find the winning idea. It features these themes: Sacrifice.
It is White to move. Look for the tactic hiding in the position — Sacrifice. 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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