Tic-Tac-Toe

Click a cell to place your X or O. Line up three of your symbols in a row — horizontally, vertically, or diagonally. Play against the computer or with a friend on the same device.

X 0

O 0

Draws 0

How to play

Choose a mode — against the computer (pick a difficulty level) or two players on the same screen.
Players take turns: X goes first, then O.
Click an empty cell to place your symbol.
Whoever lines up three symbols first — horizontally, vertically, or diagonally — wins. If the board fills up with no winner, it's a draw.

Frequently asked questions

Can I beat the computer on the hardest level?

No — level 3 plays mathematically perfect (a minimax algorithm) and never loses. The best you can achieve against it is a draw. Try level 1 or 2 for a real shot at winning.

Is the score saved?

Yes, the number of X wins, O wins, and draws is saved in your browser (localStorage) and persists between visits.

Can two people play on the same phone?

Yes, choose "2 players" mode — players take turns tapping the screen, alternating X and O.