Solution
53. ♜g8+ ♚d7 54. ♞c5+ ♚e7 55. ♞xd3 cxd3+ 56. ♚xd3
The position
This advanced puzzle (rating 1823) asks White to move to find the winning idea. It features these themes: Fork.
It is White to move. Look for the tactic hiding in the position — 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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