Simultaneous Four in a Row
Three players secretly pick columns, then reveal together. Discs drop in a rotating order on a nine-by-nine board. Make four across, up or diagonally to win. Play solo against two computers.
Simultaneous Four in a Row in 30 seconds
- AimBe first to line up four discs across, up or diagonally.
- PickAll three players secretly choose a column, then press Confirm.
- RevealReveal together and drop in the numbered order, 1–2–3. Stop as soon as someone makes four.
- RotateThe last player goes first next round: ○×☆ → ☆○× → ×☆○.
At a glance
| Item | This game |
|---|---|
| Players | 3 players |
| Play time | About 5 min |
| Type | Board |
| Ranked play | No |
| Practice against the CPU | Yes |
| Price | Free (no account needed) |
| Rights holder | A public-domain classic game |
| Last updated | 2026-10-30 |
How to play Simultaneous Four in a Row online with friends
- Tap "Play with friends"A party is created with a 6-character code. No account is needed.
- Send a link or QR codeShare it on LINE, or just read the code aloud.
- Everyone opens it in a browserOnce 3 players have joined, the host taps "Start".
Rule highlights
Setup, play, and winning
Setup
- Three players use a nine-column, nine-row grid. Empty seats can be filled by computers, so you can play solo.
- Players receive Red ○, Yellow × and Blue ☆. The initial assignment is random, or you can choose seat order before starting.
How to play
- Tap a column or its numbered button to select it privately. You can change your choice until you press Confirm.
- Once everyone confirms, all choices are revealed. Discs drop in the numbered order shown above the board, into the lowest empty space.
- When choices overlap, the earlier disc lands lower. If the column fills before your drop, you miss that round’s disc. Already full columns cannot be chosen.
- The last player to drop goes first next round. Each player goes first once in three rounds.
- You have 30 seconds to confirm. An unconfirmed player automatically chooses the leftmost open column. After the drops, the next round starts when everyone presses Next, or after ten seconds.
Winning
- Four or more of your discs in a horizontal, vertical or diagonal line wins. The round stops at the first winning drop, even if someone later in the order could also make four.
- If all 81 spaces fill without four in a row, the game is a draw.
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FAQ
How many can play?
Three. Play alone against two computers, or add one computer when playing with a friend.
How does this differ from Four in a Row for Three?
Everyone chooses secretly, then reveals together. The drop order rotates every round.
Is it free?
Yes. Play free in your browser without signing 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 I play against the computer (CPU)?
Yes. You can play against computer opponents without inviting anyone.
Can I play online with friends far away?
Yes. Start a party and send its invite link. Friends can join in their browsers without signing up.
Is there an app?
This is a free app that runs in your browser. No installation is needed.
Connect Four and Connect 4 are trademarks of Hasbro. This page is not affiliated with Hasbro.
Rights holder and physical edition
This is a public-domain classic game. The rules follow the standard reference rules.
Related games
Same type (Board)
Same player count
Last updated 2026-10-30 · Run by Qdan, Inc.