This generation of Civ I promised myself to participate in that kind of friendly competition and here is my first submission. Yay.
The winning turn is 366 in the year 1946 AD.
My initial plan was to go for 3 or 4 cities, but after exploring the surrounding area I changed my mind and settled for two cities. My capital being the main culture hub and a second city providing support (science, production and most importantly Great Artists) for my capital.
The first 200 turns or so were quite uneventful. I saved up my policies whenever it seemed the best thing to do, explored the rest of the world and (going into Patronage after Freedom) I allied myself with as many city states as possible, providing me with more culture and a bit of food.
Meanwhile Darius I of the Persians started to go rampage on the eastern half of my continent, elimnating Bismarck and a few of my allied of befriended City States (which I couldn't do anything about).
The west side of my empire was conrolled by the Aztecs and again some of my City States. This AI also seemed to enjoy killing off good City State candidates, but again I couldn't afford to make the AI angry at me.
By the time the Persian war machine reached my borders I was mightily afraid of losing this game in like five turns. I decided to open my borders hoping Darius would go to war with the Aztecs or attack one of the city states (he had war with every CS). Luckily, he did exactly that marching with an army 20x my size towards Genoa.
What I didn't expect was Montezuma declaring war on me and attacking from the west. I diverted my ressources towards building a few trebuchets to defend my cities, but what saved me in the end was bribing Darius into declaring war on Montezuma as well, which made him turn back his army reaaaally quickly.
50 turns later or so the Aztecs were history and part of the mighty Persian empire.
However, by that time I was also close to completing my cultural victory, having saved up ~38k culture until I had built Cristo Redentor. So I only had to hold Darius off for a few turns. I bribed my ass off and luckily he decided to like me
After finishing Cristo Redentor came another shock - I had not only accumulated enough culture to finish five trees... in fact I could almost complete a sixth one too. Damn - that was much time lost.
~15 rounds later I won.
I'm definitely looking forward to optimizing my game play with the new things I learned from that playthrough and can hopefully submit a much better save next time.
Cheers
P.S. I had a bug in this game, which I reported
here. It basically gave me like 50 Irons too much, however I didn't use Iron anyways since I built only three units