QUADRANT UPPER RIGHT AND LOWER LEFT
LOWER ONE QUARTER BLOCK
LEFT THREE QUARTERS BLOCK
LEFT ONE EIGHTH BLOCK
DARK SHADE
UPPER ONE EIGHTH BLOCK
QUADRANT LOWER LEFT
QUADRANT UPPER LEFT
QUADRANT UPPER LEFT AND LOWER LEFT AND LOWER RIGHT
QUADRANT UPPER LEFT AND LOWER RIGHT
QUADRANT UPPER LEFT AND UPPER RIGHT AND LOWER LEFT