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.
(esconder) Mantenha a sua Caixa de Mensagens limpa, Arquivando mensagens importantes e usando regularmente a opção "Apagar TODAS as Mensagens". (pauloaguia) (mostrar todas as dicas)