Tic-tac-toe (or “Noughts and Crosses”) is a game simple enough to implement in any computer system: indeed it’s often used in beginner’s programming courses.

The Wade Creek House in Estacada, Ore., is offering a workshop on making a concrete tic-tac-toe game or custom stepping stones to add whimsy and long-lasting art to a garden.

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 ...