Solution
47. ♛xc7+ ♜xc7 48. d6 ♜c6 49. d7 ♜d6 50. e7 ♜xd7 51. e8=♛
The position
This intermediate puzzle (rating 1705) asks White to move to find the winning idea. It features these themes: Promotion.
It is White to move. Look for the tactic hiding in the position — Promotion. 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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