KGS Go Server
The KGS Go Server, or simply KGS, is a popular Go server that can be accessed at http://www.gokgs.com/. It is common to have more than 1000 people logged in at any time. High profile tournament games from Europe and North America are sometimes relayed on KGS. KGS is generally deemed to be user friendly.
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The KGS Go Server first opened under the name Igoweb in April 2000. The original rec.games.go announcement can be found here. Just a month later, the author made an agreement with Kiseido and it was renamed to the Kiseido Go Server. It was renamed to KGS Go Server in 2006. In 2017 it was sold to the American Go Foundation. William M. Shubert was the original developer of KGS.
Besides its obvious use as online Go-playing software, it facilitates escapers and it also has special features for teaching purposes. It is very easy to go through the game once it is finished to add variations and comments. You can ask an observer to add their own variations and you can save everything in SGF files. You can also upload games from your hard disk and review them on the server with your friends.
The client (known as CGoban3) has been written in English, and has been translated to Japanese, French, Italian, German, Chinese and other languages. More translations are welcome! The main "room" is called the English Game Room, but it is really an international room. There are also rooms where speakers of Chinese, Dutch, Esperanto, Finnish, French, German, Hebrew, Hungarian, Italian, Japanese, Korean, Polish, Portuguese, Romanian, Russian, Spanish, Swedish, and Turkish are encouraged to meet. In addition, there are many, many other rooms from which you can choose, and you can also create new rooms if you so desire.
You can log in to KGS by downloading the client CGoban3, which is also a good SGF editor / viewer. The client is written in Java, so in theory you can use it under Windows, Linux, Solaris, and MacOSX.
- To install it for Windows, MacosX, Linux: http://www.gokgs.com -> download link -> "CGoban with Java web start" link. See the download page for more information.
- To install it for Windows while being offline: CGoban3 Offline Installation.
- Linux users with a recent Sun java can also run the command: /path/to/java/bin/javaws http://files.gokgs.com/javaBin/cgoban.jnlp
There are no commands on KGS. You can do nearly everything from top line menus, buttons or using right-click menus.
(For those who may need it, the default server settings are host: goserver.gokgs.com, port: 2379.)
From the Oracle java page choose the JRE link and then use the 'Windows x64' link, to download and install the 'jre-8u66-windows-x64.exe', which is the latest Java Runtime Environment. ( This slightly unusual choice is attempting to avoid Oracle's advertising supported version that tries to install toolbars or other trial software. )
At the bottom left of the Windows 10 desktop screen, use the main start button to get the 'All apps' menu.
- Scroll down to 'Java', and use 'Configure Java'.
- In the 'Java Control Panel' choose the 'Security' tab and 'Edit Site List' button.
- Click 'Add' and put the text line " http://files.gokgs.com" in without the double quotes.
- For the 'HTTP location' warning, choose 'continue'.
- Then click 'OK' to close the 'Java Control Panel'.
From the KGS download page use the link 'CGoban for Java Web Start' to download and install 'cgoban.jnlp'.
- This produces a 'Security Warning' dialog box for application ' Name: CGoban3 Location: http://files.gokgs.com '.
- Click the text 'Show Options'.
- Tick the two check boxes for 'I accept the risk and want to run this application' and 'Do not show this again for apps from the publisher and location above'.
You will now be able to use the newly created desktop icon 'CGoban 3' to play Go on KGS.
You also have choice of four time systems:
- KGS supports Unicode and is translated to 30 languages. Fonts from nearly all languages are displayed.
- There are several rooms for various languages.
- Several KGS Foreign Language Pages contain help and discussions in languages other than English.
- Bill Shubert (original KGS developer)
- Oren current KGS developer
- KGS Admins
- KGS Teachers
- KGS Tutors
- KGS High Dan Players
- KGS Clans
- KGS Rank Histogram
- KGS High-dan Game Network
- KGS Ranked Game Networks
- KGS Worst Admin
- KGS Help Room
- KGS Team Tournament
- KGS Teaching Ladder
- KGS Rooms
- KGS Rooms / Advanced Study Room
- KGS Rooms / Beginners' Room
- KGS Rooms / Board Game Geek
- KGS Rooms / Deutsche Ecke
- KGS Rooms / Discussion
- KGS Rooms / English Chat Room
- KGS Rooms / Hebrew Room
- KGS Rooms / Mind GC
- KGS Rooms / Policy Discussion
- KGS Rooms / Texas Go Players
- KGS Rooms / The Dan Study Room
- KGS Rooms / The Straw Hut
- KGS Rooms / Van Go Room
- KGS Rooms / Tsumego Lounge
- KGS Rooms / Florida Scholastic Room
- KGS Events
- There is a Sensei's Library room on KGS (under Social Rooms).
- KGS Plans
- KGS Development Status
- KGS Wishlist
- KGS Bugs
- KGS Rooms / Policy Discussion
- KGS Bots
- KGS Related Utilities
- KGS Server Status
- KGS Issues (including escapers)
- Great Moments in KGS Chat
- KGS Tournament Broadcasts
- KGS Pic
- KGS Lectures gives the content of old KGS+ lectures and reviews of the teachers
- Use the Discussion page to report outages
- KGS news
- A list of KGS+ lectures
- Fuseki Info for KGS Go Server
- The KGS Archives
- KGS can be run in Nokia N900
- KGS Spectator Statistics
- KGS Score estimator
The KGS Client is available on Android:
 Users of some Asian languages (e.g. Bengali) may have to install additional fonts in their Java environment. OpenJDK Java displays some more fonts than Java SE