Part of my Nerd Wars dissertation.
Four repeats of main chart; had to bind off after row 5 of edge chart. Most of bind off as written, but had to switch to the regular old knit 1, pass last stitch over bind off about 3 inches from the end because I ran out of yarn. Ended with 2 inch yarn tail. Phew!!
I worked pretty steadily on this - it took about 5 weeks with other projects going at the same time.