Here is a diagram of how to quilt this. I've started in the bottom left corner. You quilt an arc to the right to the next seam. From there you just "sway" back and forth from right to left always crossing at the seam lines. It takes a bit of practice to sway just the right amount from block to block, but in the end, no one really notices the slight variations.
When you get to the top, you pivot and sway back down the same seam line, going to the left and then the right (dotted line). When you reach the bottom, you repeat this until all the vertical rows are done. At the bottom right corner, you sway up and start the same thing for all the horizontal rows. This will bring you to the top right hand corner. At this point you stitch each outside block until your reach the starting place. It's as easy as that!! Click the pictures to enlarge them if needed.
Until next time,