Derek Nalls wrote on Mon, May 22, 2006 07:33 PM UTC:
This is a request for future versions of SMIRF.
A 4th castling option would be useful occasionally: no castling.
Corner Chess 8 x 8, my first (and worst) chess variant ever invented is a
game where only standard chess pieces are used in which castling is
totally unnecessary. [The king is very well protected at the opening
setup.]
Corner Chess 8 x 8
/play/erf/CornerCh.html