Dijamantski član
Contents: Oxygen, Carbon, Hydrogen, Nitrogen, Calcium, Phosphorus, Potassium, Sulfur, Sodium, Chlorine, Magnesium, Iron, Fluorine, Zinc, Rubidium, et al.
Klubovi
Secret Dark Knight Society
83 članova
Mat Bobula's Chess School
1.160 članova
USChess
59.774 članova
Chess.com Legends Club
1.819.409 članova
Anna Rudolf's Fan Club
18.757 članova