Area = f13 / Screen = 4x4
  1x1   1x2   2x2   3x3   Now




AREA_e12 AREA_e13 AREA_e14
AREA_f12 AREA_f13 AREA_f14
AREA_g12 AREA_g13 AREA_g14
AREA_h12 AREA_h13 AREA_h14