Solution
47. ♞e3+ ♚f4 48. ♞xg2+
The position
This beginner puzzle (rating 803) asks White to move to find the winning idea. It features these themes: Fork.
It is White to move. Look for the tactic hiding in the position — Fork. 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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