JorgKnappen wrote on Mon, Mar 29, 2004 05:53 PM UTC:
I don't know any better name for the slip bishop, nor do I know any game
or problem that uses this particular piece.
I have different sources to Grande Acedrex, suggesting that the Unicorn
of Grande Acedrex is really a bent rider and not the piece described in
the webpage on chessvariants.com
--JKn