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 …read more (https://hackaday.com/2026/03/16/lego-machine-plays-tic-tac-toe-without-electronics/)

How I 3D Printed My Own Lego-Compatible Train Bridges
https://hackaday.com/2026/03/16/how-i-3d-printed-my-own-lego-compatible-train-bridges/

Lego train sets have been available for decades, now. The Danish manufacturer long ago realized the magic of combining its building block sets with motors and plastic rails to create …read more (https://hackaday.com/2026/03/16/how-i-3d-printed-my-own-lego-compatible-train-bridges/)