Hey /sci/entists, I need your help.
I'm working for a newspaper, they asked me to cover the local football league with one article per match. Problem is, I can't actually choose the match I have to cover, since they asked me to cover a different match every week.
So if I cover the match A-B on the first week, the next week I can't follow A-C or B-D, I need to follow the match E-F.
The league is made of 12 teams, so there are 6 match every week.

Is there some program/mathematical formula that can help me choose the matches I need to follow? Maths wasn't my strong suit in high school...