so it will be? can we hope?

bernds Thank you so much for the version with 52x52 support !!! a very big request, please add to the new version the ability to play between engines on a 52x52 board !!! some programs have support for large boards, but there is no way to make engine matches! besides that, your program is more convenient and beautiful! thanks!!!

There's now a 2.1.1 release which should work.

@bernds
big, huge, giant thanks !!!

bernds many thanks !!! it is wonderful!!!

I've pushed out some new code that adds initial support for KataGo's rulesets. This is currently for live analysis only, and I've focused on making it guess the correct ruleset from the various bits of information in the SGF file. This is based on what I've found in GoGoD plus files from a few Go servers. I'm still unsure how many menu options I really want for various rulesets and their subvariations, so on top of "Best guess" there's only Chinese and Japanese so far. It's possible to influence the guess by editing the game information and changing the rules field, which may be the best way to do it if the SGF file doesn't properly specify the rules yet.

No binaries yet, but if someone wants to test I'd be interested in hearing whether it works well or has some shortcomings. One known issue: I don't know what to do about Ing rules, they aren't listed on the KataGo GTP extensions page.

There's no reason why you should need KataGo to name the rules for you to use them. KataGo's ruleset is fully documented at https://lightvector.github.io/KataGo/rules.html and every option here is indivdually toggleable, so if you want to support any new rules, you can find the closest combination of rules there and use that - and if there isn't a practically-exact match, you can ask other people specialized in rules beasts and corner cases for help in figuring what would be the closest match.

Or, if your research turns up that there is simply no 99%-correct match and you need a rule that is strongly distinct from the ones there, you can suggest to add it (but hopefully you also have a good proposal on how to make it well-defined enough to implement it programatically - e.g. if it's even 10% as complex as Japanese territory scoring, it might need some careful thought).

Hey guys,

First things first. Congratulations for the program @bernds.
Also nice to see you here @lightvector (thanks for KataGo, I follow the development closely)

I guess not much people uses Gentoo linux here, but just in case.
I created a Gentoo overlay which includes a q5Go ebuild (there was none previously), so now everyone should be able to use q5Go with this repository in Gentoo.

You can find ebuild here: https://github.com/jl1990/gentoo-overlay/tree/master/games-board/q5Go and the repository is listed here: https://overlays.gentoo.org/.
It's my first ebuild, so feel free to submit bugs, PRs...

during the game of two engines how to stop the game in order to continue later? save, then close? or does it not matter? is it possible to stop for a while? can add a pause button?

I do, actually...
Neat. You might want to add a "doc" USE flag which requires pandoc as a build dependency. The README will get installed if that program is present.

You probably also need a few additional dependencies beyond qtgui, such as qtsvg and qtmultimedia.

Possibly. Shouldn't be too hard, but maybe not the highest priority.

The problem is I really don't understand Ing rules. My eyes glaze over whenever I start reading the ko rules. I guess it doesn't matter very much, I'll ignore them for now.

Thanks for the feedback, I will apply those changes