[Set of 2 pairs (white x 2 pairs)]

[Set of 4 pairs (black x 4 pairs)]

[Set of 2: Black x 1 + White x 1]

[Set of 2 pairs (black x 2 pairs)]

[Set of 4 pairs (white x 4 pairs)]

[Set of 4 pairs (black x 2 pairs + white x 2 pairs)]