The game is played on a grid that's 3 squares by 3 squares.
You are X, your friend is O. Players take turns putting their marks in empty squares.
The first player to get 3 of her marks in a row (up, down, across, or diagonally) is the winner.
When all 9 squares are full, the game is over.(this aplication does not recognize this type of game ending-press F5 or refresh the page if happened)