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Tic Tac Toe Blog

Strategy, puzzles, history, math, classroom ideas, coding, and the surprising world behind the classic 3×3 game.

History

How Old Is Tic Tac Toe?

Tic Tac Toe has ancient relatives, but its modern rules and names are much newer. Learn how to answer the age question accurately.

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History

Who Invented Tic Tac Toe?

No single inventor of Tic Tac Toe is known. Here is why ancient relatives, modern rules, and the modern name have different histories.

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Math & AI

Is Tic Tac Toe a Solved Game?

Yes—classic Tic Tac Toe is solved. Learn what solved, perfect information, minimax, and a draw mean from authoritative game-theory sources.

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