4 in a Row is the online version of the classic Connect Four game: a vertical 7-column, 6-row grid where players take turns dropping colored discs that fall to the lowest open slot. Line up four of your discs horizontally, vertically or diagonally before your opponent does to win. It takes ten seconds to learn and a lifetime to master, with traps, forks and forced wins hiding in every position. This free version lets you play 4 in a Row online against friends in a private room, random opponents worldwide, or an AI with adjustable difficulty up to an expert level that punishes every mistake. Best-of series, rematches, chat, emotes and leaderboards are included. No download, no app, no account: play directly in your browser on desktop, tablet or phone.

How to Play 4 in a Row

1. Players alternate turns. Choose a column and your disc drops to the lowest empty row.
2. Discs stack on top of each other. You cannot place a disc in a full column.
3. The first player to connect four discs in a straight line, in any direction, wins.
4. If the grid fills with no four in a row, the game is a draw.
5. Play a rematch or a best-of series.

Game Modes and Features

• Online multiplayer against friends or random opponents
• Private rooms with invite links
• Local 2-player mode on one device
• AI opponent from beginner to expert
• Classic 7x6 board plus larger board variants
• Best-of series and win tracking
• Move timer options
• Chat, emotes and quick rematch
• Leaderboards, ratings and stats
• Works on any browser, mouse or touch

4 in a Row Strategy Tips

• Play the center column first. More winning lines pass through the center than any other column.
• Build threats on odd rows if you moved first, even rows if you moved second. This decides most endgames.
• Look for forks: two winning threats your opponent cannot block at once.
• Never give your opponent a free winning square by filling the row beneath it.
• Think about where your disc lands and where it lets your opponent play next.