User blog comment:Maki Kuronami/Lesson 7: The Art of Chess, and Gravity was happy./@comment-101.96.47.137-20130830121358/@comment-24.141.231.101-20130831052748

I agree that Ozpin uses the pieces to decide the teams, obviously. But I also think that two teams of two will pair up by finding the team the opposite colored piece.

For example, I think Ruby and Weiss will pick the Black Knight, and then team up with Yang and Blake, who have the White Knight. That way every team has another team to pair up with.

Now as to why Ruby and Weiss will pick the White Knight, I think that, especially based on previous predictions where Ruby is caught by a crow grimm and dropped off, and possibly without her Crescent Rose, Ruby and Weiss will be delayed as they are looking for, in Ruby's case: Crescent Rose, Weiss, or the chess pieces, or in Weiss' case, busy looking for: Ruby, but more likely she would just leave her and look for the "relics". So, by the time Ruby and/or Weiss find the relics, all that will be left is the Black Knight, or it's the best option, so they have no other choice but to pick it.

Or, it could be funny where Ruby arrives first without Weiss, picks the Black Knight just as Weiss arrives, and watch Weiss freak out for picking a piece without her, or for picking the Black Knight, when Ruby could have picked the Black Queen, and now being stuck with it, for example. XD