Rings

In this flash game you have to stack rings on top of each other. Every time you place a small yellow ring on top of slightly larger blue ring, they both disappear. If you make a stack of three, then the points you receive for making the pile vanish are more. Also, you have to clear each ring before a set time limit. It's exceptionally addictive, and I've been playing it all weekend. I thought it would kick the week off well.