"Tic Tac Toe Free remains one of the top free apps on iTunes because you get exactly what you paid for - a classic game of Tic Tac Toe." Stop wasting paper and start saving trees. Because of the simplicity of Tic Tac Toe, it is often used as a pedagogical tool for teaching the concepts of good sportsmanship and the branch of artificial intelligence. The Tic Tac Toe game is a game for two players, who take turns marking the spaces in a 3×3 grid. The player who succeeded in placing three respect