[Nicholas Carlini] programmed a C implementation of two-player Tic Tac Toe, and he did it in a single ... written for The International Obfuscated C Code Contest (IOCCC). Most of us are aware ...

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 ...