Solution
50. ♜xc1 ♚xc1 51. h4 ♜e4 52. h5 ♜g4 53. ♚xe3 ♚b2 54. ♚f3
The position
This advanced puzzle (rating 1807) asks White to move to find the winning idea. It features these themes: Quiet Move.
It is White to move. Look for the tactic hiding in the position — Quiet Move. 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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