Well, I got it on 1st try, two weeks ago, and today, again. I don't find it very difficult. But it's enjoyable and a very good level. I can see, why some people get stuck in it, for a while. I guess it's due to my ''complicating when not needed'' (in fear of getting stuck), that I do so well, here. :))
The trick is very subtle. In levels without holes, it's very hard to hide it, but because of all the backtracking and pushing around holes, it becomes way harder to spot.
