About Tic Tac Toe

Tic-Tac-Toe is the world's most analyzed perfect-information game — mathematicians have proven definitively that with optimal play from both sides, every game ends in a draw. This makes it a fascinating study in game theory: the first player must choose the center or lose the theoretical advantage, and the second player must respond correctly to every threat or lose. Against AI opponents and human novices alike, the game becomes a lesson in forcing wins from positions that appear neutral. This version includes three AI difficulty levels so you can study the game's complete strategic tree from both the winning and drawn-game perspectives.