Solution
54… ♜f2+ 55. ♚g4 g2 56. ♝xe5+ ♚h6 57. ♝xf4+ ♜xf4+ 58. ♚xf4 g1=♛
The position
This expert puzzle (rating 2205) 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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