Have fun with this classic tic tac toe game. Play noughts and crosses against a computer opponent or another player. Are you a tic tac toe expert or just a beginner? Learn the perfect strategy to ensure you don't lose while you wait for a mistake so you can win the game. Originally this game was played by pencil and paper, with two players taking it in turns to fill in the spaces in a 3x3 grid using either a O or an X symbol. Now you can play this noughts and crosses game with your finger. The winner is the player who manages to match 3 of their symbol in a horizontal, vertical or diagonal line; but the game can also be drawn.