Can I beat the hard AI?

The hard AI uses Minimax and plays perfectly — the best you can do is draw. Try Easy mode for a beatable opponent.

How does Minimax work?

Minimax explores all possible future moves and picks the one that maximises the AI's chance of winning.

Tic-Tac-Toe

Play Tic-Tac-Toe against a smart computer AI in your browser. Can you win?

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How to play

You are X — click any empty cell to place your mark.
The CPU (O) responds immediately after your move.
Get three in a row — horizontal, vertical, or diagonal — to win.
Use Easy mode for a beatable random opponent, Hard for a perfect AI.
Click Restart to begin a new round; the score carries over.

You play as X. Click a cell to make your move. The computer plays O and uses Minimax (Hard) or random (Easy) strategy. Can you win?

Frequently asked questions

Can I beat the hard AI?: The hard AI uses Minimax and plays perfectly — the best you can do is draw. Try Easy mode for a beatable opponent.
How does Minimax work?: Minimax explores all possible future moves and picks the one that maximises the AI's chance of winning.