Handing out a card that is also a ... also has a complete Tic-Tac-Toe ... so he decided to keep it simple and use an array of 18 LEDs—9 in each of two colors laid out in a familiar 3×3 grid.

First, print your tic tac toe game cards (as many as you need), and then use Reese’s Pieces candies as your Xs and Os. Actually any small candies will do as long as they are two different colors.

[Mukesh] dropped us a tip because he has the antidote to boredom — a new twist on that old chestnut, Tic Tac Toe. Instead of the usual 3×3 configuration, [Mukesh] made the grid 4×4 so the game ...

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 ...