Solution
45. a7 ♜xa7 46. ♜xa7 ♚xa7 47. ♚c5 ♚a6 48. ♚d6 ♚a5 49. ♚xe6 ♚a4 50. ♚xd5
The position
This intermediate puzzle (rating 1562) asks White to move to find the winning idea. It features these themes: Rook Endgame.
It is White to move. Look for the tactic hiding in the position — Rook Endgame. Drag a piece on the board to play your move; the puzzle will tell you if you found the best continuation.
Take 50,000 puzzles anywhere
Get Chess Puzzles Trainer for iPhone and iPad — the same puzzles, offline, with progress tracking and spaced repetition.