Solution
39… ♛b1+ 40. ♚e2 ♛d3+ 41. ♚e1 ♛d1#
The position
This advanced puzzle (rating 2037) asks Black to move to find the winning idea. It features these themes: Mate in 3.
It is Black to move. Look for the tactic hiding in the position — Mate in 3. 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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