This is a great puzzle game. I gave up on level 9. I could get everything but the pyramid. I don't think I ever understood the rule for the rail road tracks. something about doing all the tiles in it's row or column but the exact reason some orders worked and some didn't never gelled for me. I thought I understood the pyramid rule after it's first appearance but then I couldn't make it trigger on 9 so I guess I didn't.

The tutorial section was well done, effective and clever and respectful of the player.

Loved it! it really made me think a lot! The last one is genious. I hope you expand the game further, I think it has a lot of potential and it feels a bit short.
Love how the tutorial puzzles actually make you think as well with the little clue above.

I had a lot of fun with this! I like that the only hints are in the level names. and everything else is left for discovery. Level 3 was the toughest for me, but after finally solving it the rest of the game just clicked for me, I'd suggest making the grid size for level 3 smaller to let the player be able to accidentally solve it, but still learn from it. The last level did a great job of throwing all the concepts together and having them interact. 

Good Job! 

Really cool puzzle concept! I couldn't understand what I was supposed to do in level 8 but I had fun anyway