Hint

The move equalizes the position.


Bigger hint

It’s a seemingly crazy move.


Answer

44...be3!!

NikoTheodorou vs. royalfork56 | Analysis

It was a speed chess game that I just watched live. My brain told me black was toast but the eval bar said the position was equal. I couldn’t believe it.

Black only had 11s and he must have decided it was hopeless so he resigned.