KataGo Distributed Training

About This Run

KataGo is a strong open-source self-play-trained Go engine, with many improvements to accelerate learning (arXiv paper and further techniques since). It can predict score and territory, play handicap games reasonably, and handle many board sizes and rules all with the same neural net.

This site hosts KataGo's first public-distributed training run! With the help of volunteers, we are attempting to resume training from the end of KataGo's previous official run ("g170") that ended in June 2020, and see how much further we can go. If would like to contribute, see below!


  • 2022-05-16 - Disabling support for versions older than v1.11.0 in selfplay data contribution so that we can make full use of new graph search parameters for search during selfplay.

  • 2022-03-20 - KataGo v1.11.0 is released! New graph search algorithm instead of tree search, and various parameter improvements.

  • 2022-01-27 - Switching to 60-block net for selfplay data contribution! 40-block net will continue to be trained as well on the data and be rated as well.

Downloading KataGo

If you simply want to run KataGo, the latest releases are here and you can download the latest networks from here. You very likely want a GUI as well, because the engine alone is command-line-only. Some possible GUIs include KaTrain, Lizzie, and q5Go, more can be found searching online.

How to Contribute

Contributors are much appreciated! If you'd like to contribute your spare GPU cycles to generate training data for the run, the steps are:

First, create an account on this site, picking a username and secure password. Make sure to verify your email so that the site considers your account fully active. Note: the username you pick will be publicly visible in statistics and on the games you contribute.

Then pick one of the following methods.

Likely easiest method, for a home desktop computer:

  • Download and install KaTrain
  • Inside the GUI menu, select the option for distributed training, provide the username and password for the account you created, and choose a few settings, then just let it run!

Command line method: if running on a remote server, or have already set up KataGo for other things, or if you want a command line that will work in the background without any GUI, or want slightly more flexibility to configure things:

  • Download KataGo from the latest release.
  • Edit the contribute_example.cfg that came when you downloaded KataGo, use a text editor to fill in your username, password, and the few different settings you want.
  • Run it on the command line like: ./katago contribute -config contribute_example.cfg on Linux, or katago.exe contribute -config contribute_example.cfg on Windows. If it is working, it should print out various stats as it runs, including when it finishes and uploads a game.

Either way, once some games are finished, you can view the results at https://katagotraining.org/contributions/ - scroll down and find your username! If anything looks unusual or buggy about the games, or KataGo is behaving weirdly on your machine, please let us know, so we can avoid uploading and training on bad data. Or, if you encounter any error messages, feel to ask for help on KataGo's GitHub or the Discord chat.

For advanced users, instead of downloading a release, you can also build it from source. If you do so, use the stable branch, NOT the master branch. The example config can be found in cpp/configs/contribute_example.cfg

And if you're interested contribute to development via coding, or have a cool idea for a tool, check out either KataGo's GitHub or the this website's GitHub, and/or the Discord chat where various devs hang out. If you want to test a change that affects the distributed client and you need a test server to experiment with modified versions of KataGo, it is available at test.katagodistributed.org, contact lightvector or tychota in Discord for a testing account.

Stats for kata1

This run is named kata1 and began on 2020-11-28 20:23:43 UTC.

Data Generation

Across all time, 677 distinct users have uploaded 1,739,772,972 rows of training data, 33,157,294 training games, and 749,669 rating games.

In the last week, 41 distinct users have uploaded 3,251,380 rows of training data, 64,989 new training games, and 1,403 new rating games.

In the last 24h, 21 distinct users have uploaded 489,928 rows of training data, 9,956 new training games, and 253 new rating games.

Look up and view games for this run here.


A total of 518 networks have been uploaded for kata1.

Latest network: kata1-b60c320-s6372316160-d2964581281

Strongest confidently-rated network: kata1-b40c256-s11840935168-d2898845681

Approximate Elo Ratings Graph
Graph is based on about 749,669 rating games using mid to high hundreds of playouts. Ratings might still be mildly inflated due to only playing other KataGo nets, but otherwise are fresh and unbiased and involve a variety of nets to avoid rock-paper-scissors. Vertical bars indicate approximately a 95% confidence interval.

Click and drag to zoom. Double-click or click on a button to reset zoom.

Top Contributors

See here for a full list of contributors for kata1.

In the Last 24h

User Training Rows Training Games Rating Games
maomaochong 225,347 rows generated 4,583 training games 89 rating games
badukmegapack 113,014 rows generated 2,281 training games 53 rating games
takashige8 32,972 rows generated 625 training games 6 rating games
shaoxy 30,538 rows generated 610 training games 16 rating games
水底2022 26,043 rows generated 530 training games 0 rating games
dahuojiwo2 17,718 rows generated 426 training games 0 rating games
yxy 14,387 rows generated 282 training games 3 rating games
Ferran 8,745 rows generated 171 training games 8 rating games
hzb 5,842 rows generated 126 training games 4 rating games
ttm716 5,567 rows generated 114 training games 0 rating games
simmyjim 2,528 rows generated 50 training games 12 rating games
fyContributors 1,718 rows generated 34 training games 0 rating games
lizzieyzytest 1,650 rows generated 41 training games 0 rating games
YangZ 1,239 rows generated 25 training games 0 rating games
mmming0123 993 rows generated 22 training games 0 rating games

In the Last Week

User Training Rows Training Games Rating Games
maomaochong 1,284,132 rows generated 25,878 training games 414 rating games
badukmegapack 864,632 rows generated 17,055 training games 295 rating games
takashige8 194,821 rows generated 3,771 training games 128 rating games
水底2022 189,041 rows generated 3,761 training games 0 rating games
菜鸟老树 181,123 rows generated 3,764 training games 61 rating games
shaoxy 180,233 rows generated 3,556 training games 74 rating games
yxy 112,356 rows generated 2,224 training games 21 rating games
hzb 39,619 rows generated 788 training games 24 rating games
ttm716 34,178 rows generated 666 training games 20 rating games
simmyjim 20,213 rows generated 392 training games 62 rating games
dahuojiwo2 17,741 rows generated 428 training games 0 rating games
Ferran 17,141 rows generated 331 training games 8 rating games
ez4u 13,486 rows generated 266 training games 4 rating games
jojo 13,086 rows generated 270 training games 0 rating games
George 9,040 rows generated 178 training games 2 rating games


User Training Rows Training Games Rating Games
luckyangman 342,435,207 rows generated 6,418,062 training games 140,115 rating games
yaoge123 227,042,239 rows generated 4,428,073 training games 57,952 rating games
AiqiGo 148,551,176 rows generated 2,819,086 training games 53,342 rating games
jiusi010302 111,549,344 rows generated 2,157,135 training games 32,148 rating games
VegetableKnife 79,204,855 rows generated 1,470,688 training games 23,367 rating games
katavip.net 70,333,459 rows generated 1,379,068 training games 18,868 rating games
jameswen429 65,701,378 rows generated 1,211,481 training games 30,013 rating games
kcwu 45,131,243 rows generated 865,458 training games 90,968 rating games
Sponsorship 35,233,550 rows generated 668,781 training games 13,461 rating games
spark9 34,586,663 rows generated 663,843 training games 13,537 rating games
badukmegapack 33,305,714 rows generated 649,597 training games 11,346 rating games
maomaochong 32,969,430 rows generated 654,603 training games 14,401 rating games
petgo3 29,050,941 rows generated 546,901 training games 12,958 rating games
Friday9i 25,119,685 rows generated 494,913 training games 19,079 rating games
Buddha 20,794,173 rows generated 383,435 training games 9,015 rating games