function F = KBg90F(x)
%

F(1) = -0.79925 + (1-x(1)) + x(3) - x(6)*x(3);
F(2) = -0.83177 + (1-x(5)) + (1-x(4)) - x(7)*(1-x(4));
F(3) = -0.72987 + (1-x(2)) + x(4) - x(8)*x(4);
F(4) = -0.91037 + x(1) + x(2) + x(3) - x(9)*x(3) - x(10)*x(2) - x(10)*x(3) + x(10)*x(9)*x(3);
F(5) = -0.87394 + x(1) + x(3) + x(4) - x(11)*x(4) - x(12)*x(3) - x(12)*x(4) + x(12)*x(11)*x(4);
F(6) = -0.90561 + (1-x(4)) + (1-x(2)) + (1-x(1)) - x(13)*(1-x(1)) - x(14)*(1-x(2)) - x(14)*(1-x(1)) + x(14)*x(13)*(1-x(1));
