Tic-Tac-Toe for 2 Players

Tic Tac Toe is a paper-and-pencil game for two players, X and O, who take turns marking the spaces in a 3×3 grid. The player who succeeds in placing three respective marks in a horizontal, vertical, or diagonal row wins the game.
Play together or try to beat the AI!
Music: neocrey–Your personal heaven