Solution
49. ♝d3 ♜d4 50. ♜f5+ ♚g4 51. ♜xf6
The position
This advanced puzzle (rating 1913) asks White to move to find the winning idea. It features these themes: Fork, Clearance.
It is White to move. Look for the tactic hiding in the position — Fork, Clearance. 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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