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About Tic Tac Toe
Free online Tic Tac Toe (noughts and crosses). Play two players on one device or against an unbeatable AI.
Tic Tac Toe, also called noughts and crosses, is one of the world's simplest strategy games. Between two perfect players it always ends in a draw - which is exactly why our Hard AI, powered by the minimax algorithm, can never be beaten. Try to force the draw, or switch to Easy mode for a winnable challenge. Two players share one device pass-and-play style - and over a video call, one person shares this screen and taps the squares the other calls out, which is exactly how a lot of grandparents play it with grandkids abroad.
Frequently asked questions
Can you beat the Hard AI?๏ผ
No. The Hard AI plays perfectly using the minimax algorithm, so the best you can achieve is a draw. Switch to Easy mode if you want a chance to win.
Is this Tic Tac Toe free?๏ผ
Yes, completely free with no sign-up, no ads walls, and no downloads. It runs right in your browser on any device.
Can two people play on one phone?๏ผ
Yes. Choose the 2 Players mode and pass the device back and forth - X and O take turns on the same screen.
Who goes first in Tic Tac Toe?๏ผ
Player X always goes first, which is a small advantage. In our game you can start a fresh round any time with the Play again button.
Can we play from two different places?๏ผ
There's no online matchmaking in this version, but it works well over a video call: one player shares their screen in 2 Players mode and taps the moves their far-away opponent calls out ('top left!'). For games the family joins by code from anywhere, try Live Quiz, Buzz, or 304.
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