It's best not to play this game while you're at work--because you may find yourself
still playing it when you should be working! And the source code is included!
The object of the game is get the Rocks to pass through the gates to the bottom. Each
rock which makes it to the bottom will increase your score by one. Enter the rocks
in the top green starting lanes by clicking in the green lane you wish to start with.
You and the computer will take turns adding rocks to the board. If two or more rocks
fall through to the bottom in a single turn, the player gets another turn.