It's a very interesting block. It could be converted into Square in a Square in a Square block very easily. I drew the block as originally shown in EQ7. The second picture is the outline of the pieces in the block. The third is the colored version.
Edited to Add: No Y seams in the final draw. All pieces added to the first square are QST's. It would be a much easier pattern to sew. The problem will be keeping the 3D aspect that the solid pieces give. I would try this on a test block to see if you like the variation.
Last edited by Barb in Louisiana; 07-08-2018 at 05:10 PM.