This game is basically the same as one I've seen on a different forum, but nonetheless, here's how it goes.
The person above you has an imaginary diamond, you have to find a way to steal it. It's just a never ending game of one person taking the diamond from the other. Only rules are: You can't permanently destroy the diamond or put it a box thats completely impossible to get into.
I'll start.
I wrap myself around the diamond, preventing it from being easily taken.