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 Post subject: Ogatak: another Lizzie-ish GUI (KataGo only)
Post #1 Posted: Wed Jul 28, 2021 5:52 am 
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Hello all -

I've lately been attempting to write a Lizzie-ish GUI (for KataGo only) and it's reached the point where I'm no longer entirely ashamed of it, so if anyone wants to try it out, see:

* https://github.com/rooklift/ogatak
* https://github.com/rooklift/ogatak/releases

Comments welcome.


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 Post subject: Re: Ogatak: another Lizzie-ish GUI (KataGo only)
Post #2 Posted: Thu Jul 29, 2021 5:21 am 
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Hello
Thank you for creating a GUI that looks interesting.
I have a few questions to ask.

I got an error when I set KataGo 1.9.0. Do I always have to use KataGo 1.9.1?
Also, does the configuration file need to be analysis_example.cfg? Is default_gtp.cfg not possible?

I would be grateful if you could tell us concretely what is different and what is better when compared to Lizzie.

Thank you

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 Post subject: Re: Ogatak: another Lizzie-ish GUI (KataGo only)
Post #3 Posted: Thu Jul 29, 2021 9:28 am 
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hope366 wrote:
Hello
I got an error when I set KataGo 1.9.0. Do I always have to use KataGo 1.9.1?

KataGo 1.9.0 had a serious bug which can cause crashes, so yes.

hope366 wrote:
Also, does the configuration file need to be analysis_example.cfg? Is default_gtp.cfg not possible?

Uh, I don't know to be honest. I personally use a small file like so:

Code:
numAnalysisThreads = 1
numSearchThreadsPerAnalysisThread = 12
nnMaxBatchSize = 12
nnCacheSizePowerOfTwo = 20
nnMutexPoolSizePowerOfTwo = 16
nnRandomize = true
analysisPVLen = 15


hope366 wrote:
I would be grateful if you could tell us concretely what is different and what is better when compared to Lizzie.

It's mostly a matter of aesthetics I guess, which is entirely subjective, although there are certain bugs in the last release of Lizzie that could do with being fixed (e.g. handicap games).

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 Post subject: Re: Ogatak: another Lizzie-ish GUI (KataGo only)
Post #4 Posted: Thu Jul 29, 2021 10:40 pm 
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Thank you for your response.
There was certainly a bug in the latest release of Lizzie. A pull request to resolve it was announced immediately, but a new version has not been announced due to the stagnation of Lizzie development.

By the way, does Ogatak use KataGo's analytics engine? If so, what is the difference between a GTP engine and an analytics engine?

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 Post subject: Re: Ogatak: another Lizzie-ish GUI (KataGo only)
Post #5 Posted: Fri Jul 30, 2021 4:53 am 
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hope366 wrote:
By the way, does Ogatak use KataGo's analytics engine? If so, what is the difference between a GTP engine and an analytics engine?

Yes, it does. I'd say it's easier for the GUI developer to use. For one thing, it's stateless, in the sense that, when making a new query to KataGo, the GUI supplies all necessary information (i.e. the complete history) without having to worry about what state KataGo was in before; this is more convenient.

(You can, I suppose, do the same with GTP by starting a new game for each query, but that's not really how GTP is designed to be used...)

The analysis engine also supports analysing multiple positions at once, and multiple commands active at once, though Ogatak doesn't use either.

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 Post subject: Re: Ogatak: another Lizzie-ish GUI (KataGo only)
Post #6 Posted: Fri Jul 30, 2021 6:43 am 
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Thank you for your detailed explanation :)

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