LEFT SEVEN EIGHTHS BLOCK
LOWER ONE EIGHTH BLOCK
LOWER THREE EIGHTHS BLOCK
LOWER HALF BLOCK
LOWER THREE QUARTERS BLOCK
LOWER SEVEN EIGHTHS BLOCK
LEFT THREE QUARTERS BLOCK
LEFT HALF BLOCK
LEFT THREE EIGHTHS BLOCK
QUADRANT UPPER LEFT AND UPPER RIGHT AND LOWER LEFT
QUADRANT UPPER LEFT AND UPPER RIGHT AND LOWER RIGHT