Dara does not know the back of his own hand

Here's a brief description of the contestant's attempt. Someone's probably working writing up more detail!

Dara forgot which hand Alex had taken a photo of, thinking it was the right hand, and not the left hand that had his wedding ring on it. He used 200 guesses to reject two of the boards, but failed to find his own hand in time, receiving zero points.

(Written by Taskmaster Wiki contributors)