The homewprk description says to allow non logged in users to play against the AI. But to create a game object I need to attach to it a user object. If a user is not logged in how would that work? Should I create a temporarily user and also there's issues with automatically saving after each move. Would I just not allow that users profile to be displayed?

I guess my application is heavily dependent on a user being logged in and not sure the best way around that.