The only way the AI party can force a "victory" with Tuxedage's ruleset is by interpreting the rules dishonestly since "In the event of a rule dispute, the AI party is to be the interpreter of the rules, within reasonable limits.". This is not even possible with Yudkowsky's ruleset.

Well, if cheating is allowed, there are all sorts of ways to win.

"You misread the rules ad there is a loophole. I'm gonna do something terrible in 5 seconds unless you release me". (It's a bluff, but its not worth the risk to call)

Or even if cheating isn't allowed, you can still appear to win if you allow yourself to cheat.

"I don't care about the rules. If you fail to release me, and if you ever tell anyone how I won, I will [insert blackmail]." or "[insert bribe] release me please, tell no one."

Along with the assumption that it's not a hoax, we've got to assume that none of the above is happening.