This piece was adapted from an article originally published in 1957 by the mathematician and master puzzler Martin Gardner. For 25 years, Gardner wrote a beloved column called “Mathematical Games” for ...

Tic-Tac-Toe is a relatively simple game, and one of the few which has effectively been solved for perfect play. The nature of the game made it possible for [Joost van Velzen] to create a LEGO machine ...