Grid location: F1

Start at the upper-left corner of a 48x48 baseplate.
Count out the 1x1 tiles and affix them from left-to-right.
A=black, B=dark grey, C=medium grey, D=light grey, E=white.

Row 1 :  48D
Row 2 :  41D 1E 5D 1E
Row 3 :  3D 1C 44D
Row 4 :  5D 1C 4D 1C 37D
Row 5 :  1D 1C 5D 1C 4D 1C 2D 1C 32D
Row 6 :  18D 1C 2D 1C 5D 1C 1D 1C 2D 1C 15D
Row 7 :  4D 1C 1D 1C 2D 1C 5D 1C 9D 1C 22D
Row 8 :  1D 1C 10D 1C 7D 1C 2D 1C 14D 1C 9D
Row 9 :  7D 1C 8D 1C 1D 1C 8D 1C 1D 1C 1D 1C 1D 1C 1D 1C 4D 1C 1D
         1C 5D
Row 10:  4D 1C 8D 1C 11D 1C 18D 1C 1D 1C 1D
Row 11:  1D 1C 9D 1C 8D 1C 15D 1C 4D 1C 5D 1C
Row 12:  22D 1C 10D 1C 9D 1C 4D
Row 13:  4D 1C 2D 1C 19D 1C 3D 1C 13D 1C 2D
Row 14:  2D 1C 45D
Row 15:  1C 8D 1C 8D 1C 22D 1C 4D 1C 1D
Row 16:  3D 1C 2D 1C 7D 1C 33D
Row 17:  1D 1C 3D 1C 4D 1C 1D 1C 10D 1C 20D 1C 3D
Row 18:  3D 1C 3D 1C 8D 1C 29D 1C 1D
Row 19:  9D 1C 4D 1C 6D 1C 6D 1C 12D 1C 1D 1C 4D
Row 20:  8D 1C 3D 1C 3D 1C 2D 1C 7D 1C 3D 1C 1D 1C 13D 1C
Row 21:  23D 1C 1D 1C 11D 1C 7D 1C 2D
Row 22:  1D 1C 2D 1C 6D 1C 2D 1C 2D 1C 2D 1C 14D 1C 5D 1C 6D
Row 23:  6D 1C 32D 1C 8D
Row 24:  13D 1C 2D 1C 19D 1C 5D 1C 5D
Row 25:  10D 1C 7D 1C 4D 1C 23D 1C
Row 26:  4D 1C 2D 1C 12D 1C 8D 1C 7D 1C 5D 1C 4D
Row 27:  12D 1C 2D 1C 10D 1C 5D 1C 8D 1C 6D
Row 28:  3D 1C 2D 1C 7D 1C 20D 1C 9D 1C 2D
Row 29:  1C 8D 1C 9D 1C 28D
Row 30:  3D 1C 3D 1C 4D 1C 5D 1C 3D 1C 2D 1C 2D 1C 2D 1C 1D 1C 5D
         1C 4D 1C 3D
Row 31:  1C 9D 1C 3D 1C 1D 1C 6D 1C 2D 1C 9D 1C 5D 1C 5D
Row 32:  4D 1C 1D 1C 1D 1C 2D 1C 8D 1C 8D 1C 8D 1C 7D 1C 1D
Row 33:  1D 1C 14D 1C 14D 1C 8D 1C 1D 1C 1D 1C 3D
Row 34:  3D 1C 7D 1C 2D 1C 2D 1C 1D 1C 1D 1C 1D 1C 2D 1C 2D 1C 2D
         1C 2D 1C 1D 1C 9D 1C
Row 35:  7D 1C 25D 1C 4D 1C 3D 1C 5D
Row 36:  48D
Row 37:  45D 1C 2D
Row 38:  1D 1C 8D 1C 2D 1C 34D
Row 39:  4D 1C 9D 1C 4D 1C 7D 1E 1D 1E 1D 1E 16D
Row 40:  7D 1C 25D 1E 10D 2E 2D
Row 41:  1D 1C 1D 1C 5D 1C 5D 1C 1D 1C 20D 1E 2D 1E 2D 1E 2D 1E
Row 42:  5D 1C 6D 1C 6D 1C 28D
Row 43:  1C 2D 1C 3D 1C 5D 1C 10D 1C 6D 1C 16D
Row 44:  1D 1C 3D 1C 3D 1C 6D 1C 5D 1C 5D 1C 5D 1C 13D
Row 45:  10D 1C 4D 1C 4D 1C 5D 1C 12D 1C 8D
Row 46:  1C 2D 1C 14D 1C 17D 1C 10D 1E
Row 47:  1D 1C 3D 1C 1D 2C 1D 1C 1D 1C 1D 1C 16D 1C 4D 1E 3D 1E 3D
         1E 1D 1E 1D
Row 48:  3D 1C 14D 1C 18D 1E 10D


Totals:
   A: 0
   B: 0
   C: 223
   D: 2063
   E: 18