Tic Tac Toe

A tic tac toe game with several difficulties. On the hardest difficulty it is impossible to win, while on the easiest it is impossible to lose. This is possible because there are relatively few options to play and the computer can just try them all.

Trivia

• There are 255 168 possible different tic tac toe games that can be played.
• While there are 19683 combinations of Xs and Os, only 5478 of them are reachable during a game.
• These boards can be represented as rotations or reflections of only 765 unique orbits.
• Open the web console to see possible moves the computer considers.