Excellent, But...

12/04/15 Update
I think the game would be better if you can take back a move. There were several times I was close to a solution but couldnt remember how I got to a given position. So I couldnt try other moves. This is especially true for puzzles that have a 20+ move solution.

I was was trying to get a friend to download this game and discovered its not free anymore!? What happened? Please make a lite version of this game again so more people could be exposed to it! Thanks.

yyy888 about Quell+