Tic tac toe

I have written this game for my little one . Hope you like it. Please do give suggestions to improve it. This game has 2 modes, easy and difficult. Easy mode for beginners, and difficult mode for advanced players. You can configure the game so the first move is made by the system, you can change this in settings. A graphical chart shows your score displaying number of wins, losses and ties. This can reset. You can set the number of rounds per game.