Photo (and scarf) from Quince & Co., courtesy of Soulemama.
I've been trying to figure this one out on my own. Double crochet rows in two directions isn't working properly. I'm going to try single crochet next. I think I've got my stitch-to-row ratio wonky because it ends up NOT square. As you can see, square is necessary for this one. So... I'm still working on figuring this one out. Good news is, I have about 47 more scarves to make this month, so I'll have plenty of time to find a ratio that works.