I had to look up the youtube tutorials for levels 3355 and 3356, which both give you only 16 turns. They are not listed as hard, but with that few turns (and no additional turn tiles) they are basically impossible. When I checked 3355 I was surprised to see it used to have 19 turns. A few more turns would definitely have helped. But when I looked at 3356, it used to have 27 turns! What? How could they have taken away that many turns and still consider it easy - well, not hard or super hard. That is absurd!