Well, we could fit 12 into Urgaia just as easily as 11, since some people will probably start with a capital right next to theirs anyway - a real brawl.
(It's possible to manually fit 11 or 12 into Urgaia so that there's a province between each capital, but random placement is unlikely to manage it well.)
Erm - Urgaia is probably just a _bit_ small. Cradle of Zen (or regular Cradle) would be better, as would Parganos, or Karan, or Inland, or Arduria, or hey! Theater of War!
Or we could go with the 17 province test map, if we _really_ want a brawl.
