N4r35h

Results 2 issues of N4r35h

[basic_guest_chess.webm](https://github.com/code100x/chess/assets/45840495/d38306d9-cfae-47f7-865e-ff4f3d7e6657) just a very basic implementation that gets guest play working - guest vs guest (no db saves) - user vs guest (no db saves) - user vs user if...

i know that this repo hasn't been updated in 6 years but this is something i have found useful so just decided to open this PR