Solution
39… ♛xf4 40. e7 ♜e3 41. ♜xe3 ♛xe3 42. fxe3 ♚f7 43. ♚f1 ♚xe7
The position
This expert puzzle (rating 2496) asks Black to move to find the winning idea. It features these themes: Hanging Piece.
It is Black to move. Look for the tactic hiding in the position — Hanging Piece. 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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