[snipelfritz]

As I said earlier, the clue clearly states "amethiest colored glasses" They aren't real ametheist, just colored, probably purple.

I belive it will be a 3v3 match, as 3 alliances would be too complicated on a rectangular field(as I still believe it is).

The game must have something to do with performing a triple play by yourself. I also think some sort of color recognition during autonomous mode may be put into play.