Tic-Tac-Whoa!
Tic-Tac-Whoa! is a new take on an old classic. In order to secure a square with your mark, you must first win a separate tic-tac-toe game in that square. The trick is, only one game is active at a time and the active game is determined by where your opponents last move was. Very few stalemates here. Easy to play, difficult to master.