First clue, Done! Off to a day of quilting with friends. I did learn the value of a scant 1/4 in making all these four patches to come out to 4.5 inches. (Also learned that not all 2.5 squares are really 2.5!) Quilting for years and never had a problem. This time..... nearly every single square had to be "unstitched" and resewn with that "scant" 1/4. Done and waiting for the next clue.