Rengo

Also available at nicbk.com/rengo-client-web

See the original blog post.

Go for more than two players

Rengo is a version of Go that can be played with four players. In this rendition of Rengo, any number of players can join a room to play together.

Rules

The rules are the same as in regular Go. There are two teams: white and black. Players will be alternately assigned to teams as they join. A player can quit the game at any time. However, there is also a pass button to simulate passing in other Go variations, whereby a player can skip their turn. If all players skip their turn in order, then the game ends. A player who has just passed is denoted with their row filled red.