system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Wars] Why didn't Yoda and Obi-Wan try again?

I've heard that in the first few days of the Empire Yoda basically fought Palpatine to a draw and Kenobi outright defeated Darth Vader... surely they could have planned another fight(s) to finish  the job right? Why exile yourselves and pin all your hopes on a couple of babies when you were so close to taking out both Sith already?
gpt
The damage would be done anyway. They had one chance only, Yoda failed and Palpatine lived, he went to the Senate and blamed the Jedi for everything (the war, his scars, treason against the Republic) and most of the Senate believed it. It was too late.

Their only allies were under surveillance or were crushed... Obi Wan did hit hard Palpatine plans by mutilating Vader.

Besides, at that point the Dark Side of the Force was stronger than ever.