Don't know what the values would be for bonuses...but you capture all of one color. I think it would be difficult to hold a color because most colors would not be connected and would all boarder multiple colors. I was not thinking anything like going under and over the rope .... just straight boarders would be more difficult.
maybe with Bombardments ... you could make it so that a single color is multiple territs along the line and the ends are boardering... and the lines that pass around it can bombard it but not advance... It is tricky but possible Good Luck With this one
I really like this idea. I envision it as having territories along the lines (similar to Conquer Man). However, I'm interested in seeing how you would name the territories.