Help, any math wizards or people who are good at scheduling?

[stikx]

I can't come up with a solution. I was wondering if anyone could help me.


Here's the problem:

I have a Fantasy League with 12 teams divided into 4 divisions, so there are are 3 players in each division.

I need a schedule for each team to play teams within their division twice and teams out of their division once. This comes up to 13 games which is when playoffs would start.

PM the solution if you can solve it

thanks