NIP-64: Chess (Portable Game Notation)

[theborakompanioni]

NIP-64

Reserving kind := 64 for notes representing chess games in PGN format.

NIP-64: https://github.com/theborakompanioni/nips/blob/nip-64/64.md
Website: https://jesterui.github.io/nip64/

(Former discussion: #212)

[vitorpamplona]

Looks good.

I would change the title to include Chess, like Chess Game Representation, just to avoid thinking that this is a standard for any type of game.

[staab]

Is this what jester uses? If so, I have no objection to this.

[theborakompanioni]

Is this what jester uses? If so, I have no objection to this.

It's planned that jester publishes all games in the form that can be agreed upon here.
Currently, jesters game mechanics are not optimal - it was written at a time when parameterized replaceable events did not exist yet. Currently it uses kind := 30 and publishes every chess move as distinct event - this is quite wasteful and should definitely be changed in upcoming iterations.

Generally, jester will obey whatever we can come up with here. But keep in mind, that PGN is a notation for "finished" games and the NIP does not contain any references to actual game mechanics on purpose.

[theborakompanioni]

Demo website is now live: https://jesterui.github.io/nip64/

Undrafting! 🎉

[theborakompanioni]

@vitorpamplona @staab Any feedback is highly appreciated. Is there anything I can do to assist the review process? 🙏

[staab]

Looks good to me

[theborakompanioni]

Please let me know if any more information or feedback is required. 🙏

[theborakompanioni]

Rebased onto 85df9b0.
What do you think @staab?
Is there anything left to do in order to progress this further?
Any hints and feedback is highly appreciated 🙏

[dni]

⭐ 🚀

[vitorpamplona]

Is there anything left to do in order to progress this further?

To merge, there is a need for 2v lients that implement this NIP

[theborakompanioni]

Is there anything left to do in order to progress this further?

To merge, there is a need for 2v lients that implement this NIP

Understood.
(Just for me to better comprehend.. Is there a document where I can read more info regarding this requirement or is this documented somewhere? This is just me wondering how I would have known such information beforehand.) Edit: Directly in the readme, oh my.

Does the NIP website and JesterUI count as clients?
Edit2: I will open issues on Primal, njump and nostrudel and generally see what I can do 👍

[fiatjaf]

@hsjoberg

[arthurfranca]

To merge, there is a need for 2v lients that implement this NIP

Imo such niche NIP should become a NUD? The kind number could be marked on this repo as reserverd for the NUD.

[theborakompanioni]

To merge, there is a need for 2v lients that implement this NIP

Imo such niche NIP should become a NUD? The kind number could be marked on this repo as reserverd for the NUD.

I know what you mean. As a background: I have been asked by @fiatjaf to provide a NIP for this some long time ago and only had time at the beginning of this year 🤦 . So maybe this is already obsolete, and I can quite understand the benefits and drawbacks of this being an own NIP. @fiatjaf Please excuse and forgive me for taking so long to be polished and finished. Do whatever feels best!

[arthurfranca]

I mean, this chess spec is great and all, but the NIP numbers will be capped at 99 or something I heard.

One drawback of the NUD approach is there is no guarantee relays will keep the NUD article forever (or longer than github would keep a NIP around xD)

[theborakompanioni]

I mean, this chess spec is great and all, but the NIP numbers will be capped at 99 or something I heard.

One drawback of the NUD approach is there is no guarantee relays will keep the NUD article forever (or longer than github would keep a NIP around xD)

I understand. It is not in my interest to occupy any magic numbers.
I just did my duty and have done what I promised to do. Wherever this is taken and whatever happens – I support the decision.

(Chess has a wide audience and might spark interest for nostr – but this should not by any means be a justification for it to be an own NIP.)

[fiatjaf]

Thank you for writing this NIP @theborakompanioni.

I'm for merging this.

If for nothing else, because every decentralized protocol should be able to play chess (there is chess on ActivityPub and chess on SSB, for example), and the chess client was created in the early days of Nostr. Also chess is a very traditional and old game, surpassed only by Go and StarCraft.

If I remember correctly there was another chess client at the time. But we can keep this open indefinitely and wait for another implementation.

[AsaiToshiya]

I have implemented to display the chess in Brostr, but to merge this PR, I think we need to implement a client that publishes PGN notes.

[theborakompanioni]

I have implemented to display the chess in Brostr, but to merge this PR, I think we need to implement a client that publishes PGN notes.

e.g. there is https://njump.me/nevent1qqszyvyhx69weu5mvjn65nyrdeapsjd2c0c0tjpwms02kh3gup43nvsprpmhxue69uhhyetvv9ujumn0wdmksetjv5hxxmmdqgsz62azh3jsc0lcwdvjpq5qfjck3rq36lk59szc9g0qdldyvu7ehyqe43sa6

But I can also add the ability to publish PGN events to the NIP-64 website in the meantime–would that be feasible?

[AsaiToshiya]

Sounds good, but I'm not sure it is feasible. @fiatjaf what do you think?

[fiatjaf]

I think we can merge it already. Should I?

How can we view that game on Brostr?

[AsaiToshiya]

Sorry, the new version is not released yet, but will be very soon.

[AsaiToshiya]

@fiatjaf I just released a new version of Brostr. You can view that game here.

[theborakompanioni]

Resolved conflicts and rebased onto current master (744bce8). 🙏

[AsaiToshiya]

Nice!