Yes NIP-64 it defines one event, which is the outcome of a game after it is played.   It could be used as a game in progress too, but that requires clients to understand chess logic and to interpret algebraic notation, so I'm proposing FEN which allows clients to remain dumb and still play chess.  And NIP-64 doesn't have any way of pairing people together for a game, reporting errors, dealing with draws or resigning, timing, etc.  My proposal adds more parts but still is far from complete. 

 (this applies to nip 64 as well) what is the advantage of doing this over using lichess.org? maybe we should stop trying to use nostr for all the things 

 I agree we should stop trying to use nostr for all the things.

I did it in a day because I had a bad week and I needed a win. 

 NO I will use Nostr to watch TV one day you can't stop meeeee