Solution
19… ♛b6 20. ♞g5 ♛xb1+ 21. ♜xb1 ♜xb1+
The position
This advanced puzzle (rating 2171) 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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