Pre-flight Check:
Science slider is at 60%, gaining +3gpt. I don't see much point for making gold as we won't need it for trading anytime soon

and we're far from a cash-rushing gov. So, I up the science to 80%, moving BW from 18 --> 12 turns to complete and netting 0gpt.
MMing cities looks fine. Ansar had mentioned changing the worked tiles for +1 commerce, but I can't see anyway to do that.
Change Salamanca from Settler --> Barracks, due in 3
I note that there are coastal tiles visible beyond the mountains NW of capital. More evidence we are at the extreme end of the landmass...
Press enter...
IBT
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Turn 1 --> 2300
Move warrior 1N to the chokepoint.
IBT
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Turn 2 --> 2270
Fortify warrior on choke
Salamanca grows and builds rax next turn, but no real MM opportunities available. We'll have a little overrun on food and shields
IBT
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Turn 3 --> 2230
Salamanca Barracks --> Settler
Greebley Falls Warrior --> Worker
Original worker finishes road and moves E, N to a new BG for purposes of road to the cow settler site.
Move new warrior temporarily to Rat Falls to keep the peace
Raise lux to 10% to prevent riots
Unfortunately, when Rat Falls grew last turn, it selected the fish on growth rather than a forest. The governor chose this because it was making less than +3fpt overall, but this is still annoying...grr
I chose to keep Rat Falls working the fish rather than a forest. That way it grows in twice as fast and makes +2cpt. Some people may chose the forest instead (speeding the rax by 2 turns) but the faster growth/commerce is more important, IMHO.
MM Salamanca to grow in 4 and make settler in 5 (it'll actually make the settler in 4 once I MM more.)
After keeping on working the Rat Falls fish, I decide to keep science at 80%. This gets us BW in 7 rather than 9 turns, but does cost us -1gpt.
IBT
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Turn 4 --> 2190
Worker roads the BG
Move temp Rat Falls warrior to Salamanca, and move 1 warrior from Salamanca NE, N...and
he discovers Gems!
Raise lux to 20% to keep peace. Reduce science to 70% to get us 0gpt (rather than -2gpt). BW drops just 1 turn, completed in 7 turns.
I realize I could MM some more to get Rat Falls rax 2 turns quicker, but that would cost us 2cpt overall in juggling. I don't think the tradeoff is worth it, so I leave things as is.
IBT
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Turn 5--> 2150
Northern warrior discovers a second gem
MM Salamanca to get Settler in 2 turns (after the forest growth). This costs us 1cpt, making us net -1gpt overall. I leave science as is.
IBT
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Turn 6 --> 2110
Warrior discovers...a larger expanse of dreary tundra to the north.
I make sure Greebley River works a nearby roaded grass so that the Governor of Salamanca doesn't get ideas about working a non-forest tile on growth
This will cause me a little more MM juggling next turn, but it's worth it.
IBT
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Turn 7 --> 2070
Arrgh!! The Salamancan governor still chose an ordinary grass tile, leaving our settler 1 turn short

Our overall small +fpt in the capital is wreaking havoc with the governor. I decided to hire a temp scientist in the capital for the extra turn. The specialist will slow growth in the capital, but if we follow the 8 turn archer-settler cycle that I mentioned, we want the capital down to size 2. It'll save us on the happy slider too.
I MM all cities and temporarily juggle around the tiles worked to minimize overruns and max commerce.
Worker to cow to road
IBT
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Turn 8 --> 2030
Salamanca Settler--> Settler
Greebley River Worker--> Warrior? Not sure on this build, we may want another rax instead. Possibly even another granary...
Worker1 roads the cow
Worker2 to Rat Falls BG, starts to mine
MM all cities.
Salamanca will need it's BG mined for this settler-archer factory to work.
Lux slider back to 10% and science to 70%. BW due in 3 turns.
IBT
Meet China!! According to the rules, I declare war ASAP without going to the trading screen. AW, here we come.
Turn 9 --> 1990
Dow China. They have a reg warrior 4 moves away from attacking our chokepoint warrior. Our Military advisor says we're weak compared to China. Ok then.
The CA2 pop-up lets us know we can buy BW, Masonary, Myst, and The Wheel from China. I'm not sure if this is spoiler info based on our variant, but I decide to report it anyway.
I still move the new settler to near the chokepoint spot. To help with defense, I moved Rat Fall's warrior toward the chokepoint. I contemplate changing Salamanca's build to Archer but refrain for the moment. I'll leave that for Aabraxan because the build won't finish during this set regardless. In any event, we can easily have 3+ reg warriors in our choke before the Chinese warrior gets there.
BW due in 1 turn, with -1gpt. I kept the Salamanca warrior back as an MP so that we don't have to raise the lux slider exorbitantly and slow down BW.
IBT
Chinese warrior moves toward the choke, 3 turns from being able to attack
Turn 10 --> 1950
Rat Falls Barracks --> Archer
Research BW --> The Wheel.
At least have China make contact is lowering tech costs. I have research at 70%, getting The Wheel in 16 at -2gpt. Obviously the rate can be changed by next player
All city builds are debatable. The cow will be roaded in 1 turn, hooking up the chokepoint site by road to rest of the empire.
I propose naming next city site "Fort Ansar" to continue our current naming scheme patterned after ourselves.