Solution
42… f5 43. g4 ♜f2+ 44. ♚g3 f4+
The position
This advanced puzzle (rating 2107) asks Black to move to find the winning idea. It features these themes: Quiet Move.
It is Black to move. Look for the tactic hiding in the position — 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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