First step in solving a mystery

The DaChintzy Code - I have started working on my first mystery quilt.  Sorry, no pictures for awhile..perhaps I can show a few after a week or so, otherwise it would spoil the surprise....this will last for 12 (or 13) weeks. I will tell you that I have to sew a certain number of shapes with the same number of shapes to create a final number of shapes.  And I plan to sew an extra seam with each shape so that I will have another group of shapes ready for a scrappy quilt at another time......