Solution
19. exf6 ♝xe2 20. fxe7 ♛xe7 21. ♜e1 f3 22. gxf3
The position
This advanced puzzle (rating 2007) asks White to move to find the winning idea. It features these themes: Middlegame.
It is White to move. Look for the tactic hiding in the position — Middlegame. 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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