CONNECT FOUR

How to play

You play red, the CPU plays yellow, and you always move first. Click or tap a column to drop a disc into its lowest open slot, then take turns until someone lines up four discs — horizontally, vertically, or diagonally. The computer thinks several moves ahead, so it blocks your near-wins and grabs its own winning chances, making careless moves risky. If all 42 slots fill with no winner, it's a draw. Your win/loss tally is saved in this browser, so keep playing and try to out-think the CPU.