Play Connect Four Online

About Connect Four

Connect Four is the classic drop-and-stack strategy game. Take turns with the computer dropping colored discs into the grid — you're red, the CPU is yellow. The first to line up four of their color in a row, column, or diagonal wins. The computer blocks your threats and takes its own chances, so you'll need to think a move ahead.

How to play

• Tap a column to drop your red disc into it.
• Discs stack from the bottom up.
• Line up four reds in a row, column, or diagonal to win.
• Watch the CPU — block its three-in-a-row before it connects four.
• The board fills fast, so plan your threats early.

Controls: Tap a column on mobile, or click on desktop.

Tips

• Play the center column early — it touches the most winning lines.
• Create two threats at once so the CPU can't block both.
• Always block the computer's three-in-a-row immediately.

Is Connect Four free?

Yes — it's a free instant-play browser game with no download.

Do I play against the computer?

Yes, you play red against a computer opponent that blocks and attacks.

Does it work on phones?

Yes — just tap the column where you want to drop your disc.