I thought the Magic Puzzles was a bit confusing: with the arrow next to the C and G pieces I thought they had to go on the left side.... which turned out not to be the case.
In LOGO all numbers into strips must be different and have a common divisor.
I think it probably would have helped to have a title that might have hinted to the rule. I think it was a bit too complicated. It took me 2 hours to figure it out. It was a really nice puzzle to solve though. Just the getting the rules was hard work.