to AbigailII: You are not right with this. Chess960 is not Shuffle Chess, where mirrored positions of course were functionally identic. You will have noticed, that the positions after O-O and O-O-O are not symmetric. Thus the existence of castlings indeed makes mirrored starting positions belong to different games. The conclusion is, that of course 960 different situations are defined.
(ocultar) Si de repente el sitio se muestra en un lenguaje desconocido, tan sólo pincha con el ratón sobre la bandera de tu idioma para restablecerlo. (pauloaguia) (mostrar todos los consejos)