Get yourself some graph paper and draw it out. This quilt is set on point. It really is not difficult, just one block that's a log cabin variation with a 4-patch as the hearth block. It has sashing between the blocks that are two strips wide (same width as the log strips) with another 4-patch as the cornerstones.
The picture of the pattern I pulled up was not large/clear enough to determine whether the sashings continued around the whole blocks on the outside edges, but they could. Try drawing it both ways and add in your setting triangles.
Jan in VA