Solution
21… ♜xc3 22. ♜b1 ♛a3 23. ♞xc3 ♛xc3
The position
This advanced puzzle (rating 2134) asks Black to move to find the winning idea. It features these themes: Middlegame.
It is Black to move. Look for the tactic hiding in the position — Middlegame. 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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