Deimantinis Narys
Contents: Oxygen, Carbon, Hydrogen, Nitrogen, Calcium, Phosphorus, Potassium, Sulfur, Sodium, Chlorine, Magnesium, Iron, Fluorine, Zinc, Rubidium, et al.
Klubai
Secret Dark Knight Society
83 Nariai (-ių)
Mat Bobula's Chess School
1 483 Nariai (-ių)
USChess
64 594 Nariai (-ių)
Chess.com Legends Club
2 437 680 Nariai (-ių)
Anna Rudolf's Fan Club
18 629 Nariai (-ių)