If you visit Vienna some time we can meet and I can show you how to get thru the castle in SotB
It is hard, but not impossible. Haven't finished the game, though
Anyway, I have finished more than 100 !! Amiga games wihtout cheating by now
Some of the last ones were Loom, Monkey Island, Beyond the Ice Palace, Slightly Magic, Winnie Pooh, Mother Goose, The Sword & the Rose and some others. Most of them are quite easy games, though.
For the rest see my posting on page 1 of this thread.