SUPERCHESS 4 way chess game by Green Island Game, Co. Chess | eBay
Super Chess : r/chessvariants
Superchess 3
Roblox Super Chess Codes (February 2023) - Pro Game Guides
4 sets containing over 60 pieces for Superchess, a collection of chess variants featuring a large collection of new chess pieces invented by Henk van Haeringen. 2009 NK-set + Exchess set 4 +