This is very cute and interesting. Good job!
the grid:
0x1028e20202020x9e2x7e0x9e20202020x9e2x7e0x9e20202020x9e2x7e0x9e20202020x9e2x7e0x138e20202020x8e2x8e0x9e20202020x8e2x8e0x9e20202020x8e2x8e0x9e20202020x8e2x8e0x136e20202020x9e2x8e0x8e20202020x9e2x8e0x8e20202020x9e2x8e0x8e20202020x9e2x8e0x137e20202020x8e2x8e0x9e20202020x8e2x8e0x9e20202020x8e2x8e0x9e20202020x8e2x8e0x136e20202020x9e2x8e0x8e20202020x9e2x8e0x8e20202020x9e2x8e0x8e20202020x9e2x8e0x137e20202020x8e2x8e0x9e20202020x8e2x8e0x9e20202020x8e2x8e0x9e20202020x8e2x8e0x136e20202020x9e2x8e0x8e20202020x9e2x8e0x8e20202020x9e2x8e0x8e20202020x9e2x8e0x137e20202020x9e2x7e0x9e20202020x9e2x7e0x9e20202020x9e2x7e0x9e20202020x9e2x7e0x1156e