First off - I think the “easy / hard” discussion is entirely subjective. If the person creating the box has created a path you’d think of, the box is easy. If it isnt, the box is hard. ( I actually found Jerry quite hard at first ).
Secondly, if you are stuck on this box, dont get frustrated just because other people say “easy, I pwnd it in 20 minutes.” Read through ALL the pages on this discussion and make sure you understand the hints. The path to completion is pretty much laid out (even when the obvious spoilers have been removed).