Jörg Knappen wrote on Fri, Sep 19, 2014 02:59 PM UTC:
Here are more ...
*) You cannot drop a piece to your 8th rank (all pieces in Pocket Mutation
Chess)
... and what about colourbound pieces? Any restrictions for keeping the
original colour binding or for not having two on the same colour? (I am not
aware of games stating such rules, but they look very natural to me)