Solution
47… cxd5+ 48. ♚b5 ♜xa6 49. ♚xa6 ♝b2 50. b4 ♝xc3
The position
This expert puzzle (rating 2278) asks Black to move to find the winning idea. It features these themes: Discovered Attack.
It is Black 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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