Grid location: E4

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


Totals:
   A: 639
   B: 791
   C: 751
   D: 95
   E: 28