Mark Thompson wrote on Sat, Sep 28, 2002 09:42 PM UTC:
> My intention was that castling, championing and centauring would be as
near as possible in meaning to castling in ordinary chess...
The hardest thing about coding the rules for castling etc. in Zillions is
the stipulation not found in ordinary chess, 'that the king has not been
checked at any previous time in that game.'