ChessChampion'´i postitused vestlusgruppides (on public boards):
Üldine BrainKing.com'i arutelu
BrainKing.com- 1 sõnum - Board for everybody who is interested in BrainKing itself, its structure, features and future. (toimetanud Hrqls, coan.net, rod03801)
Male ja muinasmale
Other chess variants- 3 sõnumid - Discuss about interesting chess variants that are not implemented on BrainKing yet. (toimetanud Caissus, andreas)