The childhood classic is going pro — and just about anyone who wants to play is eligible. Top players will battle it out in ...

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 sliding bottle challenge turns tic tac toe into a skill-based party game. Each move depends on aim, control, and a little luck. A fun twist on a classic game with a surprise waiting at the finish ...