TicTacToe, The Unbeatable
Highly customizable tic-tac-toe game. You can create your own custom tic-tac-toe game with the desired board size ranging from 3 to 10 and even how many symbols (X's or O's) in a line to win. You can choose to play against the AI, which has four levels of difficulty, or you could play the game with a friend next to you or create an online game and share a link to your friend.