SMALL GAME. BIG RIVALRY.
Three in a row.
One more round.
Play tic-tac-toe against easy, medium or hard computer opponents, or challenge a friend on the same device.
Simple rules.
Serious rematches.
You are X. The computer is O. Take turns choosing an empty square. Connect three marks across, down or diagonally to win. Fill the board without a line and it’s a draw. In local play, pass the device after each turn.
Before you hit play
How do the computer levels work?
Easy chooses random moves. Medium takes an immediate win or blocks one, otherwise choosing randomly. Hard searches possible continuations with minimax. You are X and move first.
Are scores saved or shared?
No. Board and scores stay in tab memory. Refreshing or closing the page clears them. There are no accounts, uploads, analytics or saved history.
Can I play with a friend online?
Local friend mode supports two people on the same device. Online multiplayer is not included.