Tic Tac Toe

Tic Tac Toe — also known as XO or Noughts and Crosses — is one of the most recognized strategy games in the world.… How to play & benefits →

About this game Tic Tac Toe

Tic Tac Toe — also known as XO or Noughts and Crosses — is one of the most recognized strategy games in the world. Two players take turns placing their mark on a 3×3 grid, and the first to line up three in a row wins. Our free online version lets you play against the computer at three difficulty levels: Easy (random moves), Medium (sometimes plays perfectly), and Hard (uses the minimax algorithm so it never loses).

How to Play

Choose a difficulty: Easy, Medium, or Hard.
You play as X and move first. Click any empty square to place your mark.
The computer (O) responds automatically.
Line up three of your marks in a row, column, or diagonal to win.
If all nine squares fill with no three in a row, the game is a draw.

Educational Benefits

Strategic thinking

Tic Tac Toe is simple enough to fully understand, which makes it the perfect first "look ahead" game — what happens if I play here, and what will the opponent do next?

Turn-taking and fairness

For younger children, the structured back-and-forth teaches one of the core social skills: waiting your turn, accepting outcomes, and starting a new round.

Recognising patterns

Spotting winning lines, threats, and forks trains pattern recognition in a concrete, visual way — the same skill used in chess and checkers later.

Coping with loss

Hard mode plays perfectly and cannot lose. Accepting a draw or loss gracefully is a small emotional-regulation workout with no real stakes.

Recommended Age

Tic Tac Toe works well for ages 4 and up. Very young children can start on Easy to get the mechanics and occasional wins; older kids and adults will find Hard mode an unbeatable but still rewarding challenge.

Frequently Asked Questions

Can I actually beat Hard mode?▾

No — Hard uses the minimax algorithm, which plays optimally. The best you can achieve against Hard is a draw. Medium is beatable with good play; Easy is beatable most of the time.

Do I always go first?▾

Yes, the human player takes the X side and moves first in this version, which is the traditional convention.

Is there a score tracker?▾

Yes. Wins, losses, and draws are tallied during the session so you can track your progress against each difficulty.

Does the game work offline?▾

Once the page has loaded it runs entirely in the browser with no server calls, so a temporary loss of connection will not interrupt play.

Why is Tic Tac Toe considered "solved"?▾

With perfect play from both sides, Tic Tac Toe always ends in a draw. That is why Hard mode never loses — it knows every optimal response in advance.

Tips for Parents

-Play as a pair against Easy mode first. Taking turns against the computer together lets you show strategic thinking out loud.
-For kids around 6–8, explain the idea of "forks" — creating two ways to win at once. It is a great first strategic concept.
-Switch to Hard mode after a few Medium wins; the experience of being unable to beat a perfect player leads to great conversations about strategy.
-Keep sessions short. Tic Tac Toe is best in bursts of 3–5 games rather than long sittings.