Okay, I looked up the Shadowplay pattern and if it the same one it is like a giant tumbling block pattern. if this is the one, I would resquare my blocks to a smaller size and you should be fine. Get a square ruler that you can put a line on the center seam. Square the block smaller keeping the line and seam in the center.The blocks will be smaller but you should be able to recreate the original design but on a smaller scale. When you have the center sewn together, increase the size of the borders to go on the smaller center to get the quilt up to a bigger size. Good luck.