CHALLENGES

1. Add sound effects to the game that indicate when the game has been won or tied.

2. Add logic to the game that keeps track of the number of games won, lost, and tied for each player.

3. Add logic to the game that identifies not only when a game has been won, but how it was won (diagonally, horizontally, or vertically).

4. Finally, if you think you are up to the challenge, modify the game so that one player can play against the computer.