Solution
28. ♚xe3 ♞xd1+ 29. ♚d2 ♞f2 30. ♞xf2
The position
This intermediate puzzle (rating 1604) asks White to move to find the winning idea. It features these themes: Trapped Piece.
It is White to move. Look for the tactic hiding in the position — Trapped Piece. 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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