I like lateral solutions, but then how do i know there isn't another one, one which i didn't find? Maybe for non-standard problems like this, and ones that depend on bugs, there should be some kind of hint?
@trids I am trying to tag levels so that they can be found in the search here. When I detect one that requires a bug, one of my tags is BUG. So, if I've played it, and I put tags in it, you'll know if there is a bug or not. However, some levels I don't waste time tagging, because I suspect the creator is going to fix something that was pointed out either by me or someone else. And there's one creator that always deletes his level, if he gets a one star from me… So I don't tag his at all, because it's a waste of my time if he's just going to delete it anyway.