Connect 4 is all about lining stuff up in a row. If you already know how to win tic-tac-toe, then consider yourself ahead of the curve. But whereas tic-tac-toe is played on a tiny grid consisting ...

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 ...