Marshmud: It also depends on how you got the black rook I believe - I know I don't have that achievement since I took advantage of the "1/2" price deal, which is not in the database the same as a true black rook... or something like that. I think it was discussed in this board awhile back.
(hide) If you want to play a game with an opponent of a similar level, you can define a required BKR range for a new game invitation. Then nobody with a BKR outside this range will be able to see/accept it. (Katechka) (show all tips)