Originally Posted by
GrannieAnnie
That's what I see too, but I was looking at it as a 4 x4 with squares adn triangles making the sashing. Your pattern is much easier to see.
If I were doing it, I too would make 4 - nine patches and then sew them tog randomly. The one we did for guild, we broke down each visible larger block into four smaller ones to get the randomness we wanted.