Hi! Do you remember which one? Difficulty was hard to do in the game, because if you already know the answer it's super easy to see the constellation so it was hard for me to judge what was easy and what was hard when making them. If you found it too hard it wasn't intended, I tried to hit that sweet spot where it's not hard but also not obvious. After testing it with some friends I simplified it but some of them might still be too difficult.