This is "C-4, Tic Tac Toe", labeled by the software as an advanced-level block, and rightly so in my opinion. Probably both for the small size of some of the pieces (notice mine are of various sizes), but also for the Y-seams in the outside triangles. I chose to paper piece the center and then rotary cut the outside triangles.
I could have made things easier on myself and paper-pieced the outside triangles, but the seams would not have been in the corners. Anyway, this gave me a chance to practice Y-seams, which I don't mind anywhere near as much as I mind hand applique (apologies to my regular blog readers who are probably tired of hearing me whine about hand applique...).
10 minutes ago