Gomoku

Five-in-a-row on a 15×15 board. Build threats, block your rival, and outmanoeuvre the AI in this elegant classic.

How to play

1. Players alternate placing one stone per turn on the 15×15 board.
2. Click any empty intersection to place your stone.
3. Be the first to line up five stones in a row — horizontal, vertical, or diagonal.
4. Watch your opponent: block their open four/three while extending your own lines.

Tips & strategy

• Build an 'open three' — three in a row with both ends free — to force your opponent onto the defensive.
• Block an opponent's open three immediately, or it becomes an unstoppable open four.
• Hunt for double threats: a four plus an open three (or two fours) wins on the spot.

Frequently asked questions

What is Gomoku?

A five-in-a-row game played on a 15×15 board — the first player to line up five stones wins.

Can I play Gomoku online?

Yes — play online, vs the computer, or pass-and-play, free in your browser.

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