A challenge to go through all 48 US states without hitting any one twice!
Well, actually, A playfic.com project exploring relations in Inform 7. The source is visible, so people can see how to create and define relations e.g. bordering, almost-bordering, skip-bordering (A and B don't border each other but border C.) Also, I tried to add a few other bells and whistles. Hopefully people will enjoy stealing the code or coding ideas. But not the game. Mrs. Crabtree would be disappointed in you!