Yu Ren Dong wrote on Sat, Sep 20, 2008 05:33 PM UTC:
http://filer.case.edu/org/cwrums/games/shatrank-al-kabir.html
Shatrank al-Kabir is similar to Grande Acedrex. This coincidence is
surprising for me. I think their relation is set membership. But the move
of al-Kabir Rhinoceros seems a mistake.