Interesting design and concept, and a very unique game idea. It seems a bit repetitive, but once you get into it, there's a certain level of skill and guile required to try and maximize your score.
Suggestion: Add a save function or a continue function if you decide to develop the game further. It's a very cool concept, but I wonder if it might get 'samey' even if you add more and more concepts. Also, the tutorial was rather lengthy and some things I kinda forgot until it happened. Maybe spread it out a bit on the first board.