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Gomoku Online — Real-Time Five in a Row with Friends

Place your first stone, send the link, and your friend joins the board instantly. Classic 15×15 Gomoku with live move sync, automatic win detection, and multi-round scorekeeping.

Gomoku Online — Real-Time Five in a Row with Friends Try it Free →

Features

🔗

One Move Creates an Invite Link

No lobby or room code to set up — place your first stone as Black and the game instantly generates a link you can send to a friend to join as White.

⚡

Real-Time Move Sync

Every stone you place appears on your opponent's board right away, and vice versa, so the game feels like sitting across from each other even when you're not.

🎯

Automatic Win Detection

The board checks all four directions — horizontal, vertical, and both diagonals — after every move, and highlights the winning line of five the instant someone connects it.

⚫⚪

Classic 15×15 Board

Standard tournament-size Gomoku board with Black moving first, exactly like the traditional pen-and-paper version — no variant rules to learn.

🔁

Rematch and Running Score

Play multiple rounds back to back with first-move color alternating each rematch, while your cumulative score against that opponent keeps tallying up.

👋

Challenge Message and Spectating

Attach an optional challenge message when you send your invite link, and if a third person opens a full match, they can watch the game live as a spectator.

How to Use

1

Place your first stone

Open the game and tap any intersection on the 15×15 board — this claims Black and the first move.

2

Send the invite link

As soon as you move, an invite link is generated; send it to a friend so they can join as White.

3

Take turns placing stones

Tap once to select an intersection, tap again to confirm — moves sync to both boards in real time, alternating Black and White.

4

Connect five to win

Line up five of your own stones in a row — horizontally, vertically, or diagonally — and the winning line highlights automatically.

5

Rematch and keep score

Start another round with colors swapped; your win/loss tally against this opponent carries over across rounds.

Frequently Asked Questions

Is this Gomoku game free?
Yes, completely free with no sign-up. Open the page, place a stone, and you're already playing — no account or app download needed.
How do I invite a friend to play?
Just make the first move on the board — placing a stone as Black automatically generates a shareable invite link. Send that link to a friend through any messaging app; when they open it, they join the same match as White and can move as soon as it's their turn.
What are the rules of Gomoku?
Two players alternate placing stones on a 15×15 grid, Black moving first. The first player to line up five stones of their own color in a row — horizontally, vertically, or diagonally — wins, and the winning line is highlighted automatically. If the board fills without a five-in-a-row, the round ends in a draw.
Can we play multiple rounds?
Yes. After a round ends, either player can start a rematch — the color that moves first alternates each round, and your cumulative score against that opponent keeps adding up across the match, so you can play best-of-several instead of just one round.
What happens if someone else opens my invite link?
Once two players have claimed Black and White, the match is full. Anyone else who opens the same link joins as a spectator and can watch the game live without being able to place stones.
What if my opponent goes idle?
If your opponent hasn't moved in about 15 minutes, the game pauses automatic refreshing to save bandwidth and shows a prompt — you can manually refresh to check for their move or start a new game with someone else.

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