Solution
47… ♝xc3 48. ♚xc3 a2 49. ♞xc4 a1=♛+
The position
This intermediate puzzle (rating 1760) asks Black to move to find the winning idea. It features these themes: Promotion, Sacrifice.
It is Black 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.