I think missed the knight, so you're probably right about that. now that I look at it, the black rook ends up blocking the bishop move anyway. I guess I really am bad at chess for a reason.
Well, I found a minor visual oversight at least; there's still 3 bishops. It's probably safe to swap the leftmost white-on-black bishop to a rook.
It's all good, better safe than sorry.
In theory, you can have 3 bishops if your pawn gets promoted and for some reason you decide to turn it into a bishop instead of a queen. You are right that it does look weird, but I'll leave it like that for now (it's been like this for a while). If a new bugfix update is needed, maybe I can change this as well at that point.
