Solution
15. ♞a4 ♛a7 16. ♞xc5 ♛xc5 17. ♞xe6 ♛xe3+ 18. ♛xe3
The position
This advanced puzzle (rating 1930) 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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