Board Thread:General Discussion/@comment-35967506-20180625232043/@comment-35284508-20180625234117

Black out is turning all locations on the map to one of the two levels that are marked with the grey/black color. Easily done with Photoshop. But if you want the game to do it you will have to be in the high 200s level and never bothered to take a location to Grand Master or Magister level. You can practice by getting all locations to green first.