Best Free Connect Four
Drop discs and connect four in a row before the computer does.
Level 1
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How to play
- Drop a disc. Click a column to drop your red disc into the lowest open slot.
- Build a line. Aim to connect four of your discs in a row, column or diagonal.
- Watch the computer. It blocks your threats and takes its own wins — plan two moves ahead.
About Connect Four
Connect Four against the computer. Drop your red discs into the columns and try to line up four in a row — horizontally, vertically or diagonally — before the computer connects four of its own. The computer takes a win when it can and blocks yours, so you’ll need to set up threats it can’t stop. It runs in your browser, no signup or download.
Frequently asked questions
Take turns dropping discs into the seven columns. A disc falls to the lowest open slot. The first player to line up four of their discs in a row — across, down or diagonally — wins.
It always takes a winning move when one is available and blocks your immediate winning threats, favouring the centre columns. You beat it by creating two threats at once.
Control the centre column, build threats in more than one direction, and look for “double threats” the computer can’t block with a single move.
Yes. Tap a column to drop your disc; the board scales to your screen.
You do — you play the red discs and move first, which is a slight advantage with good play.
Yes — free, no signup, no download, played in your browser.
No. Connect Four works with no signup at all; an optional free account only exists to unlock higher usage limits.
Usually just a few seconds for a typical file — Connect Four starts working the moment you give it your input.
Your input is processed in memory and never stored, so nothing is left behind once you have your result.
Casual use is unlimited, under a generous fair-use cap that keeps it fast for everyone.