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, 643 distinct users have uploaded 1,691,399,944 rows of training data, 32,192,359 training games, and 730,858 rating games.

In the last week, 45 distinct users have uploaded 26,709,169 rows of training data, 527,160 new training games, and 8,947 new rating games.

In the last 24h, 23 distinct users have uploaded 4,280,083 rows of training data, 84,575 new training games, and 1,376 new rating games.

Look up and view games for this run here.


A total of 509 networks have been uploaded for kata1.

Latest network: kata1-b60c320-s6195206400-d2919010735

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

Approximate Elo Ratings Graph
Graph is based on about 730,858 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
yaoge123 3,676,140 rows generated 72,580 training games 1,164 rating games
Friday9i 191,827 rows generated 3,761 training games 33 rating games
badukmegapack 122,163 rows generated 2,425 training games 40 rating games
maomaochong 117,822 rows generated 2,394 training games 55 rating games
菜鸟老树 64,362 rows generated 1,274 training games 26 rating games
takashige8 36,986 rows generated 729 training games 32 rating games
panep 16,493 rows generated 331 training games 12 rating games
yxy 14,252 rows generated 285 training games 3 rating games
YangZ 11,458 rows generated 234 training games 8 rating games
hzb 5,916 rows generated 112 training games 0 rating games
Kabu 5,659 rows generated 109 training games 0 rating games
bixbyr 4,786 rows generated 97 training games 0 rating games
ttm716 4,146 rows generated 88 training games 3 rating games
... 1,805 rows generated 35 training games 0 rating games
pierreL 1,786 rows generated 37 training games 0 rating games

In the Last Week

User Training Rows Training Games Rating Games
yaoge123 22,319,819 rows generated 439,700 training games 6,989 rating games
Friday9i 1,109,379 rows generated 22,120 training games 239 rating games
maomaochong 914,045 rows generated 18,443 training games 394 rating games
badukmegapack 824,908 rows generated 16,342 training games 261 rating games
菜鸟老树 257,900 rows generated 5,230 training games 107 rating games
takashige8 196,130 rows generated 3,892 training games 148 rating games
shaoxy 155,397 rows generated 3,072 training games 60 rating games
panep 114,207 rows generated 2,268 training games 86 rating games
ProblemFactory 109,040 rows generated 2,123 training games 62 rating games
yxy 105,228 rows generated 2,057 training games 32 rating games
YangZ 78,485 rows generated 1,568 training games 48 rating games
水底2022 76,827 rows generated 1,514 training games 29 rating games
Zeta 52,385 rows generated 1,030 training games 32 rating games
Kabu 50,950 rows generated 999 training games 24 rating games
Ferran 50,245 rows generated 977 training games 20 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 212,772,049 rows generated 4,145,400 training games 53,561 rating games
AiqiGo 148,551,176 rows generated 2,819,086 training games 53,342 rating games
jiusi010302 111,543,468 rows generated 2,157,002 training games 31,514 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
petgo3 28,939,387 rows generated 544,627 training games 12,905 rating games
badukmegapack 27,217,534 rows generated 529,249 training games 9,309 rating games
maomaochong 25,299,928 rows generated 499,822 training games 11,318 rating games
Friday9i 23,455,024 rows generated 461,811 training games 18,606 rating games
Buddha 20,794,173 rows generated 383,435 training games 9,015 rating games