Solution
20. ♛h5 ♝g4 21. ♛xh6 ♝f3+ 22. ♜g2 ♝xg2+ 23. ♚xg2
The position
This advanced puzzle (rating 1832) asks White to move to find the winning idea. It features these themes: Middlegame, Pin.
It is White to move. Look for the tactic hiding in the position — Middlegame, Pin. 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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