% 20-queens:
% 7 13 11 8 6 18 10 17 9 20 16 19 15 12 14 4 2 5 3 1 
%
q = [7, 13, 11, 8, 6, 18, 10, 17, 9, 20, 16, 19, 15, 12, 14, 4, 2, 5, 3, 1];
----------