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!

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:

  • Download KataGo precompiled or build it from source. (if building, only certain versions will work, please also don't skip these checks, see link for details. TLDR is: use stable branch, not master.).

  • Before anything further, to reduce the risk of GPU issues and bad data, please make sure KataGo is working properly as a plain engine or analysis tool with your favorite GUI! Make sure you also have plenty of free disk space (at least 10-20 GB) to hold networks and data.

  • 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.

  • Create a copy of the contribute_example.cfg that came when you downloaded KataGo (or found in cpp/configs/ if you cloned and built from source). Name that copy contribute.cfg and put it in the same directory as the KataGo executable. Edit within a text editor to fill in your username, password, and other desired options.

  • Run it on the command line like: ./katago contribute -config contribute.cfg on Linux, or katago.exe contribute -config contribute.cfg on Windows. If it is working, it should print out various stats as it runs and uploads games to this website.

  • After enough time, once the first games are completed, a further few minutes later they should show up at https://katagotraining.org/contributions/ (scroll down and find your username). If there is any doubt and/or to reduce the risk of buggy data, please check that they're there and that they look like reasonable games.

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, 420 distinct users have uploaded 1,284,451,698 rows of training data, 24,165,716 training games, and 581,957 rating games.

In the last week, 69 distinct users have uploaded 3,255,325 rows of training data, 63,873 new training games, and 2,432 new rating games.

In the last 24h, 37 distinct users have uploaded 472,857 rows of training data, 9,214 new training games, and 370 new rating games.

Look up and view games for this run here.


A total of 428 networks have been uploaded for kata1.

Latest network: kata1-b40c256-s10312780288-d2513725330

Strongest confidently-rated network: kata1-b40c256-s9948109056-d2425397051

Approximate Elo Ratings Graph
Graph is based on about 581,957 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 96,706 rows generated 1,882 training games 199 rating games
kcwu 57,501 rows generated 1,112 training games 22 rating games
GloriousCow 50,212 rows generated 983 training games 16 rating games
trshimizu 48,272 rows generated 934 training games 12 rating games
jojo 47,080 rows generated 907 training games 24 rating games
hawk6809 33,016 rows generated 634 training games 28 rating games
yzyray 15,038 rows generated 290 training games 4 rating games
ez4u 14,267 rows generated 290 training games 12 rating games
noesis 14,239 rows generated 266 training games 8 rating games
yxy 14,127 rows generated 290 training games 2 rating games
Serena404 12,339 rows generated 241 training games 16 rating games
你来指导A 10,084 rows generated 197 training games 0 rating games
ningxiao 9,568 rows generated 182 training games 9 rating games
Daviid 9,335 rows generated 184 training games 4 rating games
hipparcos 9,132 rows generated 176 training games 0 rating games

In the Last Week

User Training Rows Training Games Rating Games
Friday9i 450,597 rows generated 8,811 training games 1,292 rating games
trshimizu 340,421 rows generated 6,652 training games 92 rating games
katavip.net 326,660 rows generated 6,332 training games 116 rating games
kcwu 267,865 rows generated 5,214 training games 64 rating games
jojo 250,444 rows generated 4,900 training games 84 rating games
spark9 198,843 rows generated 3,924 training games 66 rating games
hawk6809 133,136 rows generated 2,621 training games 88 rating games
Gooplet 128,207 rows generated 2,481 training games 76 rating games
petgo3 108,226 rows generated 2,182 training games 52 rating games
yxy 104,073 rows generated 2,091 training games 34 rating games
ez4u 85,374 rows generated 1,712 training games 56 rating games
todbeibrot 79,405 rows generated 1,555 training games 44 rating games
reinhard811 65,396 rows generated 1,302 training games 36 rating games
Daviid 62,086 rows generated 1,238 training games 21 rating games
yauwing 57,413 rows generated 1,115 training games 24 rating games


User Training Rows Training Games Rating Games
luckyangman 342,434,717 rows generated 6,418,053 training games 140,115 rating games
AiqiGo 148,540,817 rows generated 2,818,879 training games 53,338 rating games
jiusi010302 111,533,640 rows generated 2,156,814 training games 31,514 rating games
VegetableKnife 79,204,855 rows generated 1,470,688 training games 23,367 rating games
jameswen429 65,701,378 rows generated 1,211,481 training games 30,013 rating games
yaoge123 41,869,896 rows generated 772,820 training games 3,988 rating games
katavip.net 41,618,307 rows generated 813,322 training games 12,615 rating games
kcwu 38,377,223 rows generated 732,924 training games 88,417 rating games
Sponsorship 35,233,550 rows generated 668,781 training games 13,461 rating games
petgo3 26,524,421 rows generated 496,315 training games 11,659 rating games
spark9 24,535,379 rows generated 467,080 training games 9,126 rating games
Buddha 20,793,885 rows generated 383,430 training games 9,015 rating games
daoge 14,045,702 rows generated 257,453 training games 5,741 rating games
collewjp45 13,658,786 rows generated 251,575 training games 6,063 rating games
Knight 13,427,606 rows generated 246,580 training games 5,524 rating games