Correctly handles many SGF files that trouble other GUIs, especially handicaps and mid-game board edits.
Can load NGF, GIB, and UGI files (albeit imperfectly).
No dependencies except Electron, quite easy to run from source, doesn't pull in a zillion npm modules.
Downsides
KataGo not included, setup takes at least a minute's effort.
Electron-based app, everyone hates these (they're big).
Setup
Download and unpack Ogatak, KataGo, and a KataGo weights file.
In Ogatak, select the menu item Setup-->Locate KataGo... (and locate katago.exe)
In Ogatak, select the menu item Setup-->Choose network... (and locate the weights file)
Performance tips
The setting to request per-move ownership info from KataGo (see Analysis menu) is rather demanding and you should turn it off if you experience any lag.
Alternatively, consider changing the engine report rate (see Setup menu) from the default 0.1 (which is the most intense) to something else.
Due to a complex interaction between KataGo's algorithm and KataGo's cache, the wide root noise setting can cause a reduction in perceived performance if you use the GUI in a certain way, especially if you commonly click through the top move. It may also affect whole-file analysis speeds.
About the analysis config file
KataGo requires an analysis config file. Such a file is provided with KataGo as analysis_example.cfg, and Ogatak will use this if it's present, unless you explicitly specify a different file. You might find that changing some settings therein leads to better (or worse) performance. Some have found these settings chosen by the KaTrain author to be a bit faster.
Translations
At the moment, it is possible to translate most of the menu items and some of the GUI text. See src/modules/translations.js for instructions.
Thanks to the following translators: ParmuzinAlexander, CGLemon, Bandysol.
