Connect 4 is a quick, clever game of planning ahead. Take turns dropping discs into a 7-column, 6-row grid. Each disc falls to the lowest empty space in its column. The first player to line up four of their discs in a row, horizontally, vertically or diagonally, wins.
The rules take seconds to learn, but good players think several moves ahead, setting traps and blocking threats before they happen. Play against the computer on Easy, Normal or Hard and see how far you can climb. It is free to play in your browser on mobile or desktop, with no sign-up. Looking for more games to enjoy together? Read our ideas for brain games for family time.
How to play Connect Four
- Choose Easy, Normal or Hard. You play against the computer.
- Tap a column to drop your disc. It falls to the lowest empty space.
- You and the computer take turns dropping discs.
- Line up four of your discs horizontally, vertically or diagonally to win.
- If the grid fills up with no four in a row, the game is a draw.
Tips to score higher
- Play in the centre columns early; they are part of the most possible lines.
- Always check whether the computer can win on its next move, and block it.
- Try to create two threats at once so your opponent can only block one.
- Think about which spaces will become playable after the next disc, not just the current one.
Frequently asked questions
How big is the board?
The grid has 7 columns and 6 rows.
Do diagonal lines count?
Yes. Four in a row counts horizontally, vertically or diagonally.
What do the difficulty levels change?
Easy, Normal and Hard change how carefully the computer plans its moves. Hard is a real challenge.
Is Connect 4 free to play here?
Yes. It is free in your browser with no download or sign-up.