A game designed to stimulate strategy and bring an extra touch to the famous classic old game. At the same time that the player has to worry about winning the mini games (the smaller tic-tac-toe games) he also needs to worry about winning the bigger game (which will give victory).
Perfect for playing in pairs and also for training alone.
Note: Completely offline. So it's still a great option to pass the time if you don't have internet.