Tic Tac Toe pixelated

Vintage pixels with Tic Tac Toe, if you love both then here is your game to play, using 100% AI difficulty, and it's free to play.

1.The game is played on a grid that's 3 squares by 3 squares.
2. You are X, your friend (or the computer in this case) is O. Players take turns putting their marks in empty squares.
3. The first player to get 3 marks in a row (up, down, across, or diagonally) is the winner.
4. When all 9 squares are full, the game is over. If no player has 3 marks in a row, the game ends in a tie.