Solution
64. ♚xe4 ♚b4 65. g5 a4 66. ♚d3 a3 67. ♚c2 ♚c5 68. g6 a2 69. ♚b2 a1=♛+ 70. ♚xa1
The position
This expert puzzle (rating 2399) 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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