As loathe as I am to say anything nice about our copyright system or scrabble (a territory capturing game without the most obscure and silly rules for capturing space), it does seem like the sort of thing that ought to be covered.
The list, I’m not sure. I mean if someone is actively curating a tournament list, that seems like ongoing working that ought to be protectable somehow.
Then again, various sports maintain a tournament scene without protected rules, so I may be wrong about this.