So the list could be a 2D array of booleans in the x-y plane: for example, {{{1, 1, False}, {1, 2, False}, {1, 3, True}, {1, 4, True}, {1, 5,
False}, {1, 6, True}, {1, 7, False}, {1, 8, False}},
{{2, 1, True}, {2, 2, False}, {2, 3, True}, {2, 4, False}, {2, 5,
False}, {2, 6, True}, {2, 7, False}, {2, 8, False}}}