DietersMistakesIn2021/solution130

Best  

is the only move for trying to live

Mistake  

Black is in trouble at the right side. Before living, I decided to play this forcing move. The problem is that it loses a possible atari in the fighting on the right. KataGo doesn't show any variation where it shows up but I assume that's the reason for losing so many points here.

is also a weak attempt at living.