H. G. Muller wrote on Sun, Nov 14, 2010 08:25 PM UTC:
Fairy-Max should also not have any problems playing such a variant,if you configure it for it.
Superchess,as predefined in Fairy-Max, is sort of an implementation of this on an 8x8 board, where the orthodox pieces are randomly replaced by RN, BR, QN and KN.