You can now challenge someone to game of #chess over toots! https://castling.club/ 💪
It's actually a standalone server in the #fediverse, implementing #activitypub all by itself. 😃
Server run by the main developers of the project 
It is not focused on any particular niche interest - everyone is welcome as long as you follow our code of conduct!
@CoronaCoreanici Haha, I don't know! I've never played Go myself.
I use a library made by someone else for the chess ruleset: https://github.com/jhlywa/chess.js
Other than that, castling.club implements all the fediverse stuff, message formatting, drawing the board, and the detail pages you see at castling.club itself.