Can be found under the 'Community' menu in the Navbar, at the bottom... it toggles on/off a quick javascript powered Tic Tac Toe game on top of whatever page you're viewing. You can close it from within the game, or go back to the link to toggle it off, or simply load a different page.
It's 'no frills' has a few difficulty levels and brings all the action you can expect from Tic Tac Toe.
It's 'no frills' has a few difficulty levels and brings all the action you can expect from Tic Tac Toe.