Play. Think. Win.
Every Move
Tells a Story.
Challenge your mind, outsmart the AI, or compete with someone anywhere in the world.
- Boards up to 15×15
- 4 AI levels
- Real-time online play
Choose Your Game
Three ways to play. Nothing starts until you set it up and press Start.
- Play vs AIChallenge the computer and sharpen your strategy. Four difficulty levels Hints and undo Boards from 3×3 to 15×15Play vs AI
- Local MultiplayerPlay together on the same device. Pass and play Your own player names Optional move timerPlay Locally
- Online MultiplayerChallenge a friend online or find an opponent. Private rooms and invite links Quick Match with real players Live connection and pingPlay Online
Looking for something quick? Try today’s Daily Challenge or browse board presets.
How to Play
Simple to learn, surprisingly deep on bigger boards.
- 1
Pick your board
Classic 3×3 or anything up to 15×15. Board size and the line you need are set independently.
- 2
Take turns
X always opens. Place one mark per turn on any empty square.
- 3
Line them up
Get the required number in a row — across, down or diagonally — before your opponent does.
- Arrow keys move around the board, Enter places a mark, Ctrl+Z undoes.
- Stuck against the AI? A hint highlights a strong move.
- A new Daily Challenge position is waiting every day.