Solution
18. ♝xg4 ♝xg4 19. ♞e4 ♜e2 20. ♞xf6+ ♚g7 21. ♞xg4
The position
This intermediate puzzle (rating 1506) asks White to move to find the winning idea. It features these themes: Middlegame, Fork.
It is White to move. Look for the tactic hiding in the position — Middlegame, 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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