I love this app. It has every puzzle Ive ever encountered and many more. I recommended it to all my puzzle-playing friends and would recommended it to anyone.
P.S. Proof of quilt is my favorite :)
P.P.S. Ive played over 1000 puzzles and never had a problem with the games solutions. It accepts all valid solutions so far. If you think you have a solution that the game doesnt accept then you need to check your work. Good luck!
wobster109 about 100 Logic Games - Time Killers