Tic Tac Toe - Play vs AI or Friend

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Play free Tic Tac Toe online against an unbeatable Minimax AI or challenge a friend in local 2-player pass-and-play mode. Features smart difficulty modes and animated win streaks.

Difficulty:

Choose your side:

Turn:Player X

Player X

Player O

Draws

Streak

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About Tic Tac Toe - Play vs AI or Friend

Play classic Tic Tac Toe online in your browser. Challenge our mathematically unbeatable Minimax AI or pass-and-play with a friend locally on the same device.

How to Use Tic Tac Toe - Play vs AI or Friend

1Select your preferred game mode: Play vs AI or Pass & Play (2P)
2Choose your symbol (X or O) and select the AI difficulty level
3Click or tap any empty grid square to place your symbol
4Align 3 matching symbols horizontally, vertically, or diagonally to win

Examples & Calculations

Taking the center square gives you access to 4 distinct winning lines

Setting up opposite corners creates dual-threat forks that force a win against casual opponents

Frequently Asked Questions

Can I actually beat the AI in Unbeatable / Master mode?▼

In classic 3x3 Tic Tac Toe, perfect mathematical play from both sides guarantees a draw. The Master AI uses full-depth Minimax calculation, so it is mathematically impossible to defeat—it will either win if you make a mistake or force a draw.

Can two people play on the same phone or computer?▼

Yes! Switch to 'Pass & Play (2P)' mode to take turns with a friend on the same device without needing an internet connection.