Tic Tac Toe

Classic X vs O — beat the unbeatable AI!

About This Game

Tic Tac Toe is one of the world's most universally recognized games, played on a simple 3x3 grid. This version features a perfect minimax AI that cannot be beaten — only drawn. Try to force a draw against the unbeatable computer!

Switch to "vs Friend" mode to play against another person on the same device.

How to Play

  • Click any empty cell on the 3x3 grid to place your mark (X)
  • The AI opponent (O) responds automatically after each of your turns
  • Get three of your marks in a horizontal, vertical, or diagonal line to win
  • If the entire grid fills without a winner, the game ends in a draw
  • Click anywhere to restart after a game ends

Frequently Asked Questions (Tic Tac Toe Unblocked)

Can I play Tic Tac Toe Unblocked on school Wi-Fi?

Yes! Tic Tac Toe Unblocked runs directly in HTML5 without requesting external restricted servers, making it 100% playable on school Wi-Fi and Chromebooks.

Is Tic Tac Toe completely free to play?

Absolutely. All games on UnblockedGamesSchool are completely free to play with no downloads, subscriptions, or paywalls.

How are my best scores saved?

Your highest score and personal records are automatically stored safely inside your device's browser memory (localStorage).

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