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Four in a Row

Also known as: Connect Four / Connect 4 / Gravity four in a row
25BoardCPU availableNo sign-up, free

Four in a Row is a two-player board game that takes about 5 minutes. Drop discs into an upright grid; the first to line up four across, up or diagonally wins. Free in your browser, no sign-up.

Play with friendsJust send the invite link. No sign-up for them either
Pick a time and invite
Play over time
Practice against the computerStart right away. Choose the strength
CPU strength
WeakerStronger
Find an opponent onlineComing soon (October)
Tutorial (3 min)Learn the rules as you play

What we record

Four in a Row in 30 seconds

  1. Set upUse an upright grid of seven columns and six rows. The first player is red, the second yellow.
  2. Take turnsDrop one disc into any column. It falls to the lowest free space.
  3. WinThe first to line up four of their discs across, up or diagonally wins.
  4. DrawIf all 42 spaces fill with no line of four, the game is a draw.

At a glance

The numbers for this game. These match the actual game implementation.
ItemThis game
Players2 players
Play timeAbout 5 min
TypeBoard
Ranked playNo
Practice against the CPUYes
PriceFree (no account needed)
Rights holderA public-domain classic game
Last updated2026-09-19

How to play Four in a Row online with friends

  1. Tap "Play with friends"A party is created with a 6-character code. No account is needed.
  2. Send a link or QR codeShare it on LINE, or just read the code aloud.
  3. Everyone opens it in a browserOnce 2 players have joined, the host taps "Start".

Rule highlights

Setup, play, winning, and house rules

Setup

  • For 2 players. Playing alone, you face the computer.
  • The upright grid has seven columns and six rows. The first player uses red discs and the second yellow. The first seat starts; when you play again, the first move switches each game (you can keep it fixed in the house rules).

How to play

  • On your turn, choose any column and drop one disc into it. The disc falls to the lowest empty space in that column.
  • You choose only the column, never the space. A full column cannot take another disc.
  • Discs never move and are never captured.

Winning

  • The first player to line up four of their discs in a row — across, up or diagonally — wins.
  • If all 42 spaces are filled and nobody has four in a row, the game is a draw.

House rules

Default is this site’s setting. Changeable shows whether the party can change it.
NameDescriptionDefaultChangeable
Alternate first moveSwitch who goes first (red) after each game.OnCan be changed

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FAQ

How many can play?

It is a two-player game. On your own, you can play against the computer.

Is this the same as Connect Four?

Yes, it plays the same way: drop discs into columns and line up four across, up or diagonally, on the same seven-by-six grid.

Is it free?

Yes. It is free and runs in your browser with no sign-up.

Can I play on a phone?

Yes. No app is needed — just open it in a browser. You can join the same party as people on a PC or tablet.

Can two people play?

Yes. This game supports 2 or more players.

Can we play without being online at the same time?

Yes. Choose “Turn-based (told each turn)” and you can make one move whenever you like. We tell you when it is your turn. A table ends automatically, with no winner or loser, after 45 days without a move.

Rights holder and physical edition

This is a public-domain classic game. The rules follow the standard reference rules.

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Last updated 2026-09-19 · Run by Qdan, Inc.