Case 1:
BWWWWWWW
BBWBBWWW
BBBWWWWW
WBBWWBWW
BBWWWWBW
BBWBBWBW
WWWWWBWW
WWWWWWWW

There are 20 black pieces and 44 white pieces.

Case 2:
BBBBBBWB
BBBWBWBB
BBBBBBBB
WWBWWBBB
BWBBBWBB
BWBBBBWB
BWWWWWWW
BWBBBBBB

There are 45 black pieces and 19 white pieces.

Case 3:
B______B
________
________
________
________
________
________
B______B

There are 4 black pieces and 0 white pieces.

Case 4:
WWWWWWWW
WWWWWWWW
WWWBBWWW
WWWWWBWW
WBWWWWWW
WWWWBWWW
WWWWWWWW
WWWWWWWW

There are 5 black pieces and 59 white pieces.

Case 5:
________
________
________
___BB___
___BBB__
________
________
________

There are 5 black pieces and 0 white pieces.

Case 6:
BBBBBBBB
BBBBBBBB
BBBBBBBB
BBBBBBBB
BBBBBBBB
B_BBBBBB
BBBBBBBB
BBBBBBBB

There are 63 black pieces and 0 white pieces.

Case 7:
BBBBBBBB
BBBBBBBB
BBBBBBBB
BBBBBBBB
BBBBBBBB
BBBBBBBB
BBBBBBBB
BBBBBBBB

There are 64 black pieces and 0 white pieces.