Solution
50. e6 b3 51. ♚d3 b2 52. ♚c2 b1=♛+ 53. ♚xb1
The position
This advanced puzzle (rating 2170) asks White to move to find the winning idea. It features these themes: Bishop Endgame.
It is White to move. Look for the tactic hiding in the position — Bishop Endgame. 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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