Solution
54. e6+ ♚xe6 55. d7 ♝xd7 56. ♝xb4
The position
This intermediate puzzle (rating 1459) asks White to move to find the winning idea. It features these themes: Discovered Attack.
It is White to move. Look for the tactic hiding in the position — Discovered Attack. 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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