I actually designed this on 2/22/2011 and started stitching it on 2/23/2011. This is my very first cross stitch design.
Checkerboard Dots -- computer simulation
I was inspired to do this by an optical illusion that I saw online. All the lines in the checkerboard are actually straight – it’s the placement of the dots that creates the illusion of curved lines and the 3D effect.