Shuffle is a great game to play a few rounds when you want instant win.
Shuffle is a combination of marbles, curling and billiards. There are two rows of colored balls, yours are red ones. While you take control of your balls you must knock out the yellows off the borad before the computer does the same to you. Grab a ball and drag the mouse choosing the throwing angle and power/speed, then simply let it go.
Physics play a huge part in order to help you take out yellow balls with only one throw.
As the game progresses the difficulty increases slightly, but the skills you pick up on the way can be enough to keep you winning the game.