I've been able to do 140 logic games so far without much trouble, but this one kills me. What does the fourth rule mean?:
"No segment of the path crosses any other segment."
I understand that M has to be limited to J and N, but I do not understand the stipulation listed above. Also, why does M have to be limited to J and N after the condition takes place?
Anyone who is able to answer has my eternal gratitude. (I know that is not much, but it is a prize!)