Josekle Development

[Jon_Ko]

@okonomichiyaki

good call out, I’ll filter a little bit by length maybe

The five I mentioned are those with 27 moves and more.

[okonomichiyaki]

interesting, it’s working for me in Firefox on Mac.
I looked into emoji detection earlier, will push a change to swaps them out for something else.

[Jon_Ko]

Same as me (just my first try was different).

[Groin]

This last one displays well

[qnpnpmqppnp]

If useful:

Firefox 96.0.3
MacOS 10.13.6

[Jon_Ko]

@Feijoa

Your browser must not support the emoji, at least in that context. I posted them that way so Discourse wouldn’t turn them into little pictures, maybe that’s not a good idea.

Yeah, maybe that’s not a good idea. Browser incompatibility can be tough sometimes.

[Jon_Ko]

@okonomichiyaki

I’m not checking guesses against a larger joseki dictionary, although I think that’s crucial to the wordle formula, it’s probably the hardest part for joseki. we need to extract valid joseki from Kogo’s SGF or something and encode them in a format that the app can check

I don’t think Kogo’s dictionary is good enough. It’s lacking basic modern joseki sequences and has rotation issues too (which would be not too hard to fix, but still).

[okonomichiyaki]

I’ve pushed a change which will try to detect emoji support and fall back in case of lack. The copy and paste for share is still emojis since pasting them (here or other places with “smart” emoji support like Discord) should still work

edit: also pushed a change to integrate the share button, and copy and paste is in the Discourse format for spoilers, since folks are using it anyway

[okonomichiyaki]

@Jon_Ko

I don’t think Kogo’s dictionary is good enough. It’s lacking basic modern joseki sequences

that’s good to know. it might still be useful as part of the collection of josekis… are there other freely available easily accessible collections somewhere?

I didn’t see OJE in the OGS API docs, not sure if it’s easy to get data out of there.

[Jon_Ko]

@okonomichiyaki

are there other freely available easily accessible collections somewhere?

I don’t know any (but I did also not know about Kogo’s) and sensei’s library only mentions Kogo’s.

@GreenAsJade, would you mind giving us some hints about how it would be possible to get some data from OJE? We need a dictionary of josekis to limit the possible inputs. Otherwise players can just put stones everywhere to find out which places are part of the joseki.

[yebellz]

The OJE provides these statistics starting from the root node.

Apparently there are 17200 positions within the tree, but only 925 paths are marked as joseki.

[GreenAsJade]

Are you wanting to ask OJE on the fly for a joseki path?

Or are you planning to scrape all the joseki out and store them?

For the former, I’d have to add an API (can be done).

For the latter, you can copy what OJE client does.

• Ask OJE for the tags
• Ask OJE for the root node
• Ask OJE for each next-node filtered by Joseki tag, till you get to one marked Joseki.
• If there are still next-nodes filtered by Joseki tag, keep going on that path.

I still kinda wish this was getting built into the OJE client What a good feature for OGS to have…

[Jon_Ko]

@yebellz

Apparently there are 17200 positions within the tree

@GreenAsJade

Are you wanting to ask OJE on the fly for a joseki path?

I think loading that 17200 positions at once could be feasible. And then the game could be played offline. Loading on the fly would be possible too.

@GreenAsJade

I still kinda wish this was getting built into the OJE client What a good feature for OGS to have…

Well, it wouldn’t have to be part of the OJE to be part of OGS, but it would fit there thematically.
Is all the back end code for the OJE on GitHub godojo-server?

[GreenAsJade]

No, the API of that implementation is basically correct, but the recent “upgrade” pulled the back-end in under OGS backend.

(The background is that the godojo-server was done as a learn-Java project for me, and an experiment with Neo4j. The conclusion of the experiment was that “this sucks for data that is basically a tree” and also that “this would be a lot easier for anoek to maintain if it were in compatible technology, and would also go faster”. Hence… rewrite-upgrade).

[Jon_Ko]

Okay, I see, thanks for the explanation.

[okonomichiyaki]

@GreenAsJade

I still kinda wish this was getting built into the OJE client What a good feature for OGS to have…

Speaking only for myself, I don’t think anything we have done this week precludes this eventually being part of OJE. The amount of code involved has been fairly small thanks to yebellz’ Besogo and his knowledge of the code base. I saw this prototype as a chance to see if the puzzle was fun at all

[Jon_Ko]

@okonomichiyaki

CORS issues

I try to avoid them by having front end and back end at the same origin.

@okonomichiyaki

is it possible the OJE API is not actually accessible from another site?

That’s possible, did you try requesting stuff from other origins?

[okonomichiyaki]

@Jon_Ko

did you try requesting stuff from other origins

not sure I understand, requesting from Github pages app to another API not OGS? isn’t the CORS settings on the backend so it’s specific to OGS?

[Jon_Ko]

@okonomichiyaki

not sure I understand, requesting from Github pages app to another API not OGS? isn’t the CORS settings on the backend so it’s specific to OGS?

I think there are cors settings for client (when creating the request) and back end (when handling the request).

[okonomichiyaki]

@Jon_Ko

and back end (when handling the request)

Ok after reading some more about CORS, I’m pretty sure that OJE API does not support cross origin requests. After a couple of false starts, this is the error I get:

Cross-Origin Request Blocked:
The Same Origin Policy disallows reading the remote resource at https://online-go.com/godojo/positions?id=root&mode=0.
(Reason: CORS header ‘Access-Control-Allow-Origin’ missing). Status code: 403.

I think the OGS backend would need to add a header.

So in the meantime I’m looking into adding something scrappy to just check Kogo’s SGF into the Besogo prototype for now