The arrangement vertices:
(4 1) - RED
(7 6) - RED
(1 6) - RED
(2.8 3) - WHITE
(1 3) - RED
(5.2 3) - WHITE
(7 3) - RED
(1.9 4.5) - WHITE
(2.8 6) - WHITE
(4 8) - RED
(5.2 6) - WHITE
(6.1 4.5) - WHITE
