999 is the highest 3-digit number; although I also hope that they will add 4-digits as the server gets stronger.
I’m assuming that some older games (3-4 years ago) might’ve been bugged by the server after the merge, although I can’t answer on why that is.
When trying to view https://www.chess.com/variants/custom/game/689049/0/2 a popup with "parsePgn: TypeError: n.RuleVariants is undefined" shows up and the game does not load. Can this be fixed? Also, the interface seemingly assumes I don't have over 999 games, which is false and prevents me from scrolling into the past (I only got this URL via browser history).