Solution
11. f4+ ♚xe4 12. ♛c2+ ♚d5 13. ♛f5+
The position
This advanced puzzle (rating 2194) asks White to move to find the winning idea. It features these themes: Opening.
It is White to move. Look for the tactic hiding in the position — Opening. 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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