Gomoku

Place five in a row. Read the board. Outthink the AI.

vs AI Your turn

How to play

Click or tap any intersection to place your stone. Build an unbroken line of five stones horizontally, vertically, or diagonally before the AI does. The Threat Radar highlights key patterns after each move — yellow for your opportunities, orange for strong attacks, blue for spots where you should block the opponent.

Controls: Click or tap an intersection to place. On mobile, touch-hold briefly to see a magnifier preview before releasing. Use Undo (vs AI only) to take back your last move. Switch between vs AI and Hot-Seat mode for two players on the same device.

Note: This is an original kbwen Lab implementation inspired by the classic five-in-a-row format. Game stats are stored locally on your device only.

Quick guide

Use cases, answers, and nearby tools

Compact below-tool notes that help first-run users and repeated visitors move faster without changing the main interface.

Chinese search: 五子棋、五子棋線上、五子棋 AI、五子棋遊戲

Japanese search: 五目並べ、五目並べオンライン、五目並べ AI、連珠

How to use

Run a clean first pass

  1. Click or tap any intersection on the 15×15 board to place your black stone.
  2. Watch the Threat Radar highlights to spot open-threes and open-fours after each move.
  3. Build an unbroken line of five stones before the AI does to win.

Examples

Real jobs this page helps with

  • Learn with Threat RadarTurn on the radar to passively learn open-three and open-four patterns as the highlights guide your eye.
  • Challenge the Hard AISwitch to Hard difficulty where the AI uses deep search, fork detection, and double-threat setups.

FAQ

What people usually want to know

What is gomoku?
A strategy board game where the first player to place five stones in an unbroken row on a 15×15 grid wins.
How does the threat radar work?
After each move, colored highlights briefly appear on the board showing active patterns. Yellow means opportunity, blue means you should block there.
Can I play with a friend?
Yes. Switch to Hot-Seat mode and two players can take turns on the same device.