Solution
52. d6 ♜h7 53. ♛xh7 ♝xh7 54. d7 ♚f5 55. d8=♛ ♛h1+ 56. ♚d2
The position
This expert puzzle (rating 2337) asks White to move to find the winning idea. It features these themes: Promotion, Sacrifice.
It is White to move. Look for the tactic hiding in the position — Promotion, Sacrifice. 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.