Quadradius is an insanely addictive strategy game. It's free, but you gain extra privileges by buying an account. It's like checkers, except that you move orthogonally instead of diagonally, and you jump directly onto an opposing piece instead of over it. Additionally, there are black power orbs scattered over the battlefield. When you land on one, you gain a certain power. Anyway, you can find a full explanation on the site.

It's insanely fun and strategic as well as random. If you want to play me, I'm ben666.

Do you have to give your E.mail?

No, go to the site and read the rules.