[executesorder66]

There was a whole subreddit[0] dedicated to it. And multiple people 'solved' it.

[0] https://www.reddit.com/r/theeternalwar/

[freeflight]

Gotta love how the easiest solution boiled down to a WarGames WOPR style: "Don't do anything, let the AI kill you and peace will be declared in about 20 turns." aka "The only winning move is not to play."