Many people in the world have probably heard of Sudoku. Sudoku is an Eastern game that is aimed at improving a personís ability to think logically. Sudoku is a very addicting game where numbers are involved and requires time to be solved. The easiest way but probably not the most effective one, is to play Sudoku on a piece of paper. However, for a more enjoyable experience I suggest that you download some sort of software that will enable you to play it as many times as you want. There are also many small devices that you can buy that are designed only for playing Sudoku. They are available on the Internet and are a great gift idea. It is hard to imagine of a better way to spend time if you wait in line for a doctorís appointment, or have to wait to meet with somebody. One advantage of playing an electronic version of Sudoku is that it can generate unlimited number of games. This means that you will never have to worry about being bored again. There are also many other similar games being offered. If you want to play on your computer, then you can download freeware versions of many games.