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Play Connect Four.

Drop a piece. Connect four. Watch the next column. Play solo against the computer, or invite friends to your table.

Choose how to play 1 player vs computer or 2 players · Free to play · No account needed
Connect Four table illustration

Choose how to play.

1 player against the computer

No account needed. Play at your own pace.

Choose your challenge

Fairy-Stockfish runs on your device. First use loads about 1.1 MiB.

Your level is remembered on this device. Solo games are unrated.

Online play needs a connection. Invitation rooms are private and expire seven days after the last move. Local play works on one device without connecting to the room service.

How to play Connect Four

Two players alternate dropping pieces into one of seven columns on a six-row board. Each piece falls to the lowest empty space. Four or more pieces of your color in a horizontal, vertical or diagonal line wins. A full board without a winner draws.

Before you play

How many people can play Connect Four?

Play solo against the computer, or with 2 players. Choose your mode above before starting.

How do I invite friends?

Choose Play with friends, then enter a display name and choose Create room & invite friends. Copy the invite link and send it to your friends. They enter their own names to join; no account or download is needed. Only people with the link or room code can join.

Can we play on one device?

Yes. Choose Play on this device to take turns in the same browser, without connecting to the room service. JavaScript is needed for both local and online play.

Can I play against the computer?

Yes. Choose Play solo, pick Easy, Normal or Hard, then Start solo game. You can change the level during a game. No account or room connection is needed.

Is Connect Four free to play?

Yes. Local tables and private online rooms are free to play. Online play needs an internet connection; rooms expire seven days after the last move.