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, 623 distinct users have uploaded 1,643,884,475 rows of training data, 31,250,793 training games, and 713,735 rating games.

In the last week, 41 distinct users have uploaded 4,195,983 rows of training data, 83,567 new training games, and 1,623 new rating games.

In the last 24h, 29 distinct users have uploaded 595,427 rows of training data, 11,818 new training games, and 311 new rating games.

Look up and view games for this run here.


A total of 500 networks have been uploaded for kata1.

Latest network: kata1-b60c320-s6018012672-d2872643646

Strongest confidently-rated network: kata1-b40c256-s11101799168-d2715431527

Approximate Elo Ratings Graph
Graph is based on about 713,735 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
Friday9i 127,664 rows generated 2,523 training games 24 rating games
badukmegapack 103,570 rows generated 2,070 training games 30 rating games
shaoxy 50,755 rows generated 989 training games 32 rating games
菜鸟老树 47,156 rows generated 976 training games 20 rating games
takashige8 46,841 rows generated 916 training games 26 rating games
水底2022 40,134 rows generated 843 training games 5 rating games
yzyray 39,465 rows generated 753 training games 8 rating games
OmnipotentEntity 27,330 rows generated 546 training games 12 rating games
jojo 17,277 rows generated 332 training games 24 rating games
panep 17,065 rows generated 335 training games 12 rating games
hwata 15,547 rows generated 311 training games 4 rating games
yxy 12,356 rows generated 245 training games 4 rating games
YangZ 12,265 rows generated 238 training games 4 rating games
petgo3 9,504 rows generated 193 training games 0 rating games
qian_gang 8,017 rows generated 151 training games 4 rating games

In the Last Week

User Training Rows Training Games Rating Games
Friday9i 852,767 rows generated 17,157 training games 189 rating games
badukmegapack 705,233 rows generated 13,945 training games 160 rating games
maomaochong 392,150 rows generated 7,943 training games 154 rating games
shaoxy 353,867 rows generated 6,958 training games 200 rating games
takashige8 316,465 rows generated 6,145 training games 140 rating games
水底2022 293,473 rows generated 5,914 training games 117 rating games
菜鸟老树 257,914 rows generated 5,255 training games 99 rating games
OmnipotentEntity 171,766 rows generated 3,399 training games 56 rating games
panep 118,790 rows generated 2,340 training games 84 rating games
yxy 87,838 rows generated 1,746 training games 20 rating games
YangZ 84,408 rows generated 1,627 training games 32 rating games
wzp_gogo 79,807 rows generated 1,589 training games 36 rating games
yzyray 70,334 rows generated 1,368 training games 20 rating games
hwata 61,439 rows generated 1,216 training games 32 rating games
jojo 59,274 rows generated 1,169 training games 116 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 188,219,281 rows generated 3,660,968 training games 45,804 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 28,792,923 rows generated 541,633 training games 12,845 rating games
badukmegapack 23,378,183 rows generated 453,368 training games 8,316 rating games
maomaochong 21,356,595 rows generated 420,149 training games 9,701 rating games
Buddha 20,794,173 rows generated 383,435 training games 9,015 rating games
Friday9i 18,520,171 rows generated 363,327 training games 17,378 rating games