How does the AI work?

The AI scores each move by counting connected pieces and blocking your threats — simple but effective.

Can I play with a friend?

Yes! Click '2 Player' to switch to hotseat mode — you take turns on the same device.

Connect Four

Play Connect Four in your browser. Drop tokens to connect 4 in a row — vs AI or a friend!

Embed this tool on your site

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How to play

Click any column to drop your Red token — it falls to the lowest empty slot.
Connect 4 of your tokens in a row: horizontal, vertical, or diagonal.
Block your opponent's threats while building your own lines.
Choose 'vs AI' to play the computer or '2 Player' for hotseat mode.
Click Restart to clear the board and start a new game.

Click a column to drop your token (Red). Connect 4 in a row horizontally, vertically, or diagonally to win. Choose vs AI or 2-Player hotseat.

Frequently asked questions

How does the AI work?: The AI scores each move by counting connected pieces and blocking your threats — simple but effective.
Can I play with a friend?: Yes! Click '2 Player' to switch to hotseat mode — you take turns on the same device.