Tic tac toe is a classic game. It can be played virtually anywhere and on anything, from a bar napkin to a computer screen to a chic wooden set. When you’re the first one up, there is a simple ...

Boston MoS had a tic-tac-toe device back around 1975 or 76, not sure anymore whether it was all right there in the exhibit, or if the visible part was just the display. Curious now how they did it.