Five or more.

Five or more is a simple small game that is easy to play. It is good for the office workers to relax in their spare time. It is easy to learn and good for both the old and young, plus that it is a lot of fun and fascinating. It can not only enhance your thinking skill, improve your intelligence, and it is rich in philosophy, and is helpful for spiritual cultivation.
This game derives from the Five-in-a-Row. Five-in-a-Row is a purely strategic board game played by two people. It is one of the traditional black and white chess games originated from the ancient China. It was developed in Japan, and got popular now in Europe and America.
The rule for the game is easy to learn. Every time, move a color ball once, then there will be three balls added to the board. If moving one ball can line up five or more balls with the same color, then these balls can be cleared out.
At the same time, if there is no adding of three balls, there has to be a path to the location where the ball is going to go. And the scores are calculated based on the balls disappeared; the highest score will remain at the throne.