The game is fairly simple, even though the rules seem complex, and highly addictive. There's an interactive tutorial that will help you to learn the rules of the game. The full version will let you change the game board (The space station looks cool) but only the standard board works in this demo. Think of it as checkers and tic-tac-toe all in one! Want hints? They're available, but optional. Try four different skill levels!

Full version also contains access to the Gamer's Club, which lets you play the game with people all around the world. If you do good enough, your score will be submitted and everyone can see it. Good Luck!