The discovered check with ...Bh6 was my first instinct. But then I saw that Black could block with ...Ne8.
So how to deflect, first?
Then I saw the move. A thing of beauty.
But ... I would probably not have found it in a game. I only found it now because I knew there was something there ... Funny how that works.
Screenshot from chessgamesdotcom.
White to move.
Tactics position number 6 in Thomas Engqvist, 300 Most Important Tactical Chess Positions (2020).