World Tic Tac Toe Championship Expands With 3x3, 4x4 and 5x5 Challenges and Daily Cash Prizes “You think you're good at ...

Tic-tac-toe doesn’t have much of a rep. Sure, it’s a simple, brief distraction from the monotony of existence, but once your 8-year-old self realizes that you can always force a draw, it loses its ...

Here’s another entry in the 7400 Logic contest. [Circuitchef] used gates and a few flip-flops to build a two-player electronic Tic-Tac-Toe game. The full details or shared in the PDF file he links to ...

Up to equivalence, there aren’t nine distinct opening moves. There are only three. If it isn’t immediately clear to you what “up to equivalence” means here, I urge you to try and figure it out ...

Video produced in partnership with The Great Courses. All Great Courses video content is available only to subscribers with the password sent via email. This piece was adapted from an article ...

This video features quick fun challenges that test timing speed and quick thinking. From pausing at the perfect moment to creative games and head to head races each clip brings playful competition and ...