X O Tic-Tac-Toe

Beat the computer, challenge a friend beside you, or play online.

First, choose how hard the computer should play.

DIFFICULTY 😌 Easy Random, non-optimal moves — great for warming up. 🙂 Medium A 50/50 blend of smart and random — a fair, beatable challenge. 😈 Hard Pure Minimax with alpha-beta pruning. Completely unbeatable.

Pick which mark you'd like to play, then start.

You play

Create a room, then share the 5-letter code (or the invite link) with one friend.

Ready to create a room.

You play

You0

Draws0

0Computer

X O Tic-Tac-Toe

Totally True Facts

Hard Mode Cannot Lose. It Has Checked.

Nine Squares, 255,168 Possible Games

The Room Code Is Five Letters On Purpose

Before you play

X O Tic-Tac-Toe

Solo vs Computer

Online Multiplayer

ONLINE