I jumped directly to insane and completed it on the first try. It's too easy.

And if you find a puzzle you like the difficulty of could you tell me the puzzle id at the top left please

I've just tried to bump insane up a bit if you could test it to let me know what you think?

I'm struggling to play test the higher difficulties because it above my own skill level haha

Insane is still far too easy. For the highest skill level it should be -really- hard. Was still able to solve one in under 3 minutes.

I -love- this idea though!!