Problem: :-/

6 teams

double round robin tournament

not mirrored

How do I formulate the objective function when my objective is to minimize the total number of breaks?

My model has binary decision variables Xijt, taking the value 1 if team i plays team j at home in round t.

So far I have tried to multipy two decision variables (t with t+1) and minimize the total.

But Xpress-IVE does not like non-linear functions.

someone help me?