What can I say?
Very nice. The sound is very well placed, not distorted, and fits the theme. I love putting puzzles together, this was a good change on a classic time waster. The only thing that's missing is music. A little boring, although I guess you could put on your own music through iTunes or whatever player you happen to be using at the time. However, if you are interested in some original music, I can help you out... Even so far aas writing some music specifically for the game.
Sorry, had to put that out there. But great game nontheless.