Tic-tac-toe is a classic game which involves decision making skill that is commonly played among young children. It is known for its simple rules It is played by two people who take turns marking on X or an O on a 3x3 grid. The first person to mark three of their signs in a horizontal, vertical, or diagonal row is the winner.
Rules for Tic-Tac-Toe The game is played on a grid that's 3 squares by 3 squares. You are X , your friend (or the computer in this case) 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. If no player has 3 marks in a row, the game ends in a tie.
