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Connect Four Online - Classic Four-in-a-Row

★ 5 · plays 43.9K

About this game

Play Connect Four online free against AI or a friend. Classic vertical strategy board game where you drop discs and connect four in a row. Three AI difficulty levels with minimax algorithm.

How to play

How do you play Connect Four?

Connect Four is a two-player strategy game where players take turns dropping colored discs into a vertical grid. discs fall to the lowest available slot in the chosen column. The first player to connect four of their discs horizontally, vertically, or diagonally wins.

What are the rules of Connect Four?

Each player has a color (red or yellow). Players alternate turns dropping one disc per turn into any of the seven columns. The disc occupies the lowest available slot. You cannot place a disc in a full column. Connect four of your discs in a row to win - horizontally, vertically, or diagonally.

Can I play Connect Four against the computer?

Yes! This Connect Four game features an AI opponent with three difficulty levels: Easy (depth 2), Medium (depth 4), and Hard (depth 6). The AI uses minimax with alpha-beta pruning for strategic play.

Is this Connect Four game free?

Yes, this Connect Four game on GameZipper is completely free with no download or signup required. Play instantly in your browser on desktop or mobile devices.