Solution
45. a4 bxa4 46. ♚d4 ♚d6 47. ♚xc4 ♚c6 48. ♚d4
The position
This expert puzzle (rating 2300) 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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