An addictive game that gets harder with each level until you reach the final stage where you can play as much as you can handle. The main idea is to place circles between gaps on the lock
so that you can place all of them without touching the others.
Every 5 levels you get a new life that can be used later .
At the final lvl try to get the highest score
Go to Funguessinggames.com for more guessing games like this.