What I meant was the descriptor text right of each figure such as figure CB.
Oops, just lost a draft posting. You have included Zig Zags in horizontal lines which is OK by me for the time being.
I just extrapolated from what you had drawn back to the 16 grid and drew the attached image which requires a small shuffle to achieve the parallel lines.
I have not followed this through yet but I was aware that the parallel diagonal separation had some potential <grins>