Hi Sam, again I provide a link for chess variant insiders like you: link to locally make SMIRF BC-168b available. As often repeated there also is an improved version for real donators. ;-) Best regards, Reinhard.
P.S.: could you please specify the PGN notation concerning your 10x8 extended castling rules? Because traditional O-O or O-O-O would not be always sufficient, as I presume.
P.S.: could you please specify the PGN notation concerning your 10x8 extended castling rules? Because traditional O-O or O-O-O would not be always sufficient, as I presume.