Solution
47… b4 48. ♞c6 b3 49. ♞xa5 b2
The position
This intermediate puzzle (rating 1754) asks Black to move to find the winning idea. It features these themes: Sacrifice, Quiet Move.
It is Black to move. Look for the tactic hiding in the position — Sacrifice, Quiet Move. 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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