Solution
57… ♜xa8 58. ♚xa8 h3 59. b7 h2 60. b8=♛ h1=♛+
The position
This beginner puzzle (rating 816) asks Black to move to find the winning idea. It features these themes: Promotion.
It is Black 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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