chess no castling chess and stalemate equals winches we quantified a rising diversity of opening play and the intersection of opening trees between chess variations showing how different the opening theory is for each of the rule changes yeah they again this this diversity of opening play it really rests on this assumption that alpha zero is a is a good player and any sort of an equally good player in all of these variants right because if it's worse in a variant it might not be as sure about the moves and that would just look like