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» David Molnar's Tic-Tac-Toe Variants    Describes variants on the game.    http://www.stolaf.edu/people/molnar/games/ttt/animals.html

» Guy Fawkes's Analysis of Boolean Tic-Tac-Toe    Analysis of variant that allows anti-play.    http://www.chiark.greenend.org.uk/~dricher/Nomic/Acka/subgames/bttt-analysis.html

» Math Lair - Tic-Tac-Toe    Game variations, looking from the mathematical side    http://www.stormloader.com/ajy/tictactoe.html

» Pencil & Paper Games Plaza: Tic Tac Toe    Instructions for game play.    http://www.xs4all.nl/~spaanszt/PencilPaperGames/TicTacToe.html

» The History of Noughts and Crosses    Article on the game's history.    http://www.adit.co.uk/html/noughts_and_crosses.html

» Tic Tac Toe In Brief    Rules, variations, strategy, theory and practice. Includes an online version of the game.    http://www.tic-tac-toe-online.com/

» Tic Tac Toe Strategy Solutions    Details a step-by-step process that allows the first player to win or draw, but never lose.    http://www.chessandpoker.com/tic_tac_toe_strategy.html

» Tic Tac Toe Top Secret    Description of a strategy against a member of the group that allows one to win or to draw.    http://www.askapastor.org/tictac.html

» Tic-Tac-Toe Strategy    Features explanations and the opportunity to put the advice into practice.    http://ostermiller.org/tictactoeexpert.html