Friday Puzzle #94 - Borderlines
Having shown you the "simple" form, I now want to introduce my own variation called "Borderlines". This is still a puzzle about irregular regions and loop constraints regarding the borders. However, the rules now requires you to either use a total length N, or to not use a total length N, around each region of size N and this increased flexibility leads to a whole new set of properties. There are a few logical "rules" to discover in the puzzles below, and they should certainly be harder than last week's.
Rules: Draw a single closed loop that does not intersect itself using just the dotted lines of the grid. Each colored tile of area N must have either a total length of used dotted segments of exactly N or a total length of unused dotted segments of exactly N along its border.