Solution
42… a2 43. ♚f3 ♜c4 44. ♜xb4+ ♜xb4
The position
This advanced puzzle (rating 2079) asks Black to move to find the winning idea. It features these themes: Tactics.
It is Black to move. Look for the tactic hiding in the position — Tactics. 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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