Guy Fawkes's Analysis of Boolean Tic-Tac-Toe
chiark.greenend.org.uk
Analysis of variant that allows anti-play.
Tic-Tac-Toe Strategy
ostermiller.org
Tic-Tac-Toe strategy with explanations and opportunity to put the advises into practice.
Tic Tac Toe Strategy Solutions
chessandpoker.com
Details a step-by-step process that allows the first player to win or draw, but never lose.
David Molnar's Tic-Tac-Toe Variants
stolaf.edu
Describes variants on the game.
Tic Tac Toe Top Secret
askapastor.org
Description of a strategy against a member of the group that allows one to win or to draw.
Pencil & Paper Games Plaza: Tic Tac Toe
xs4all.nl
Instructions for game play.
The History of Noughts and Crosses
adit.co.uk
Article on the game's history.
Tic Tac Toe In Brief
tic-tac-toe-online.com
Rules, variations, strategy, theory and practice. Includes an online version of the game.
Math Lair - Tic-Tac-Toe
stormloader.com
Game variations, looking from the mathematical side