Solution
50… g5 51. ♚xe8 g4 52. ♚f7 g3 53. ♞e2 ♚xb1
The position
This advanced puzzle (rating 1916) asks Black to move to find the winning idea. It features these themes: Sacrifice, Quiet Move.
It is Black to move. Look for the tactic hiding in the position — Sacrifice, Quiet Move. 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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