plan to maximise number of cities u can place on your land, while not overlaping workable tiles. i've come up with these. feel free to add your design 1. nice easy square 2. only 3 tiles in center beware if friendly AI send settler to the center 3. tilted square beware if friendly AI send settler to the center 4. hybrid it doesnt matter how big your culture border is, the only workable tiles are the 20 tiles around your cities, but, u can still get bonus from resources (healthiness, happiness only) inside your culture border but not within working range of your cities. so its best to place cities that it can have many resources(any kind) in these 18 tiles, because resources have the biggest yields when improoved. and have less unworkable tiles, namely desert, peaks, ice, thundra, in these 20 tiles and less unhealtiness tiles, flood plain, jungles are ok, because u can chop it down with iron work. knowing which tiles are unworked is important, so u dont have to improove the tile with your worker, and feel free to cut down forests on unworked tile build cities according to your situation, u can have 1 or 2 tiles overlaping, it doesnt hurt that bad.