erikthecelt
Old, Geezer, Unoriginal
Pick better maps to play. One look at that start would have been enough to regenerate a new one. Settle on a plains hill and change your citizen to working the highest hammer tile available. Find an AI within 10 squares of your capital and move in when you have 6 warriors.
I use just three warriors for the first city and four for the second. Usually there's only one warrior guarding the city and only one cultural expansion. You can declare war and move beside the city to attack. It works best before BW is discovered. The AI can't pop a second warrior and they will not build one, they are focused on growing the city. If you can't beat the first warrior with 3 then regenerate and repeat. Four for the second usually works because you get a CR1 from the first city.