Solution
51. ♚d5 a5 52. ♚e6 ♚c6 53. ♚f7 a4 54. ♚xg7 b5 55. g5 b4 56. gxf6
The position
This expert puzzle (rating 2249) asks White to move to find the winning idea. It features these themes: Pawn Endgame.
It is White to move. Look for the tactic hiding in the position — Pawn 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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