Meta-Tic-Tac-Toe – Wikipedia

Ultimate Tic Tac Toe (Xs & Os) by Skinny128, Download free STL model

Smart” computer opponent for the Tic-Tac-Toe game, by Claire Wang

For those who were asking for a sequel to tic-tac-toe, I have it. It's called Connectioseys, and it was developed by me and a friend in school years ago. : r/gaming

File:Tic-tac-toe-game-tree.svg - Wikipedia, tic tac toe game

Tic Tac Toe Game Using Arduino : 4 Steps - Instructables

Tic-tac-toe - Wikipedia

Demonstrating PERL with Tic-Tac-Toe, Part 1 - Fedora Magazine

Tic Tac Toe Document, PDF, Entertainment

Bertie the Brain - Wikipedia

File:Tic Tac Toe at Pia do Urso.jpg - Wikimedia Commons