Solution
30… bxa2+ 31. ♚a1 ♜b1+ 32. ♚xa2 ♜b2+ 33. ♛xb2 axb2
The position
This intermediate puzzle (rating 1610) asks Black to move to find the winning idea. It features these themes: Fork, Double Check.
It is Black to move. Look for the tactic hiding in the position — Fork, Double Check. 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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