Tic tac toe game is also known as game circle (O) and cross (X). In the past, it is commonly played by 2 people drawing on the paper or ground. With the development, now it can be also played on computer or other medias. As far as I am concerned, another interesting board game Connect 4 is based on

Tic tac toe game is also known as game circle (O) and cross (X). In the past, it is commonly played by 2 people drawing on the paper or ground. With the development, now it can be also played on computer or other medias. As far as I am concerned, another interesting board game Connect 4 is based on

A brief introduction of board game Tic Tac Toe, including the origin, development and variations.