First I want to say how much i love the game .... I love puzzle driven games, and this is GREAT

I have come to a couple problems, first

and not sure this one is a problem but I have not been able to access the slider puzzle .. the one where you slide to get the desired result
you want 1 2 or 3 dots? I am not sure there are places in this game, that if you have done some things, other become unnecessary
another area, I am second level going to the third and haven't used the key I have in my inventory, its the one with a numeral 2 on it,
I looked into the walkthrough and not sure where this is used, maybe its for the next area? thanks

Great game... Love it..

I'm glad you like the game so much.

We have several players of the game who have posted here, so hopefully someone will be able to answer your questions.

There is a video walkthrough on YouTube here, in case you should need it. It sounds like you are doing well with the game.