A really good puzzle game.  It was awesome that there were multiple solutions.  UI is really well laid out.  Music was good.  

The instructions started overlapping when looking at them multiple times.   The learning curve was quite steep, but after you realise you can just plop down brown hexes where ever, it becomes a lot easier for quite a while.  I was able to often get much higher powers than the goal.

Some recommendations:

- Have some victory sound effect.

- Maybe you could add hover text to the hexes to show what they do.  

- Let players remove pieces by right clicking on them even if they're not the current hex.

- Let players control the rotation using the mouse.

Cool little puzzle game, reminded me of some of the Zachtronics work! Much like Zachtronics games, this one has a very steep learning curve, which may repel a lot of players, but I adore it. The puzzles are neat, they flow very well together and the presentation is very clean. I love the music track that plays in the background! Well done!