Solution
66. ♚c6 ♚xc4 67. ♚xc7 ♚xb5 68. ♚d7 ♝a3 69. e7
The position
This intermediate puzzle (rating 1663) 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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