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 ...

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 ...