Solution
53. ♛f3+ ♛xf3+ 54. ♚xf3 ♚g5 55. c6 h2 56. ♚g2 h1=♜ 57. ♚xh1
The position
This advanced puzzle (rating 1833) asks White to move to find the winning idea. It features these themes: Queen Endgame.
It is White to move. Look for the tactic hiding in the position — Queen 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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