Solution
47. ♜f7+ ♚c8 48. ♜a8+ ♚b7 49. ♜xh8 h1=♛ 50. ♜xh1 ♜xh1 51. ♚d4
The position
This expert puzzle (rating 2280) asks White to move to find the winning idea. It features these themes: Skewer, Rook Endgame.
It is White to move. Look for the tactic hiding in the position — Skewer, Rook 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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