This is a Tic Tac Toe game. The game goes like this:

• 1. The game is played on a grid that's 3 squares by 3 squares.
• 2. You are X, your friend (or the computer) is O.
  Players take turns, putting their marks in empty squares.
• 3. If you want to start directly click on any cell of
  the board else click Start AI.
• 4. The first player to get 3 of their marks in a
  row(up, down, across, or diagonally) is the winner.
• 5. 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.
• 6. Press 'x' on keyboard to undo a move

So, Are you ready? Click Got it to goto Game.   Got It!