Have you played the game for yourself?
Have you determined the rule on your own?
If so, then you don't need my help.

If not, then you really should play the game and figure out the rule for yourself.

If you're just here because you've given up, then ask yourself:
Is giving up a behavior I really want to model for my students?
(You can close this window now.)

But if you really think you need some help, click here.