156 is tough but doable. A couple of my populations have cleared it. 175, however, looks fairly impossible :) http://imgur.com/iIIcGnJ http://imgur.com/iIIcGnJ

156 is tough but doable. A couple of my populations have cleared it. 175, however, looks fairly impossible :) http://imgur.com/iIIcGnJ http://imgur.com/iIIcGnJ Edit: 175 has been cleared by one of my populations at generation 155! 187 is definitely impassable, though. http://imgur.com/GwO4j4W http://imgur.com/GwO4j4W