Grand Chess and family is less sensitive to openings than FIDE-Chess, but
it is not insensitive, as Altair/Achernar/Deneb are not insensitive but
definitely less sensitive to openings. The possibility of a wide variety
of openings without inmediate risks of a clear loss of the game is
important in every game, and in some of them the sensitivity to openings
may play an important role in this variety. Further investigations on this
topic should be good.
