OK I've done some extensive checking of the teleport mechanics.
Per DanF's post 2721 and my own reading of the code, when deciding where a teleport will go, the initial location determines the location of the "nearest city". The code then loops over all legal tiles (i.e. that are accessible and visible) and chooses the destination tile that minimises
2*JumpDistance + DistanceToNearestCity
where both distances are measured with 1 tile orthogonally to the grid and 1.5 along diagonals. The nearest city is *not* calculated separately for each possible destination tile. This last point is critically important for us.
The Hammurabi->Shaka teleport
The anchor city will be Hammsville, no question. SBB is far too far away. Assuming a teleport from somewhere W or NW of Akkad and OB with Shaka, valid destinations include 1W of Nobamba and 1W of GhostTown. Any initial location on the Akkad row at or west of Akkad will teleport to 1W of GhostTown (results not shown), so we must start further north.
1W of GhostTown is 8 JumpDistance from 1NW of Akkad, and is 5.5 from the anchor (Hammsville) = 2*8 + 5.5 = 21.5
1W of Nobamba is 3 JumpDistance from 1NW of Akkad, and is 14.5 from the anchor (Hammsville) = 2*3 + 14.5 = 20.5
So the jump from 1NW of Akkad will be to 1W of Nobamba. Great.
The Shaka->Cyrus teleport
Here, SBB is the anchor city for a teleport from either
- the copper tile 1W of Shaka's uMung city (Hammsville is 17.5, SBB is 15), or
- the tile 1SW of that copper (Hammsville is 17, SBB is 16.5)
Of course, if we've given away Hammsville to Shaka pre-war then SBB is even more clearly the winner in the anchor city determination - DeerGold is 4.5 further away than Hammsville.
There are four destination locations worth considering. Tabulated below are their jump and anchor distances for two conceivable starting locations
From Shaka Copper:
[pre]Teleport destinations JumpDist AnchorDist TotalDist
2W1S of Numidian 4.5 11.5 20.5
1W2S of Numidian 5.0 10.0 20.0
2N1W of Borsippa 6.5 17.0 30.0
1W2N of Akkad 7.0 21.5 35.5
[/pre]
From 1SW of Shaka Copper:
[pre]Teleport destinations JumpDist AnchorDist TotalDist
2W1S of Numidian 6.0 11.5 23.5
1W2S of Numidian 6.5 10.0 23.0
2N1W of Borsippa 6.0 17.0 29.0
1W2N of Akkad 5.5 21.5 32.5
[/pre]
From either starting location,
1W2S of Numidian will be the teleport destination location, regardless of our OB status with Hammu. So we can close and reopen with him on the same turn, which will be useful for positioning to re-capture GhostTown and Hammsville ASAP.
Working backwards, a T154 DOW with movement still remaining on the stack requires that the stack start T154 at least 1N of Nobamba, i.e. that it had movement on T153 after the first teleport. So at the start of T153 the stack must be at least 2N1E of Babylon. So 1-movement units that are still 1 tile short of Babylon at the end of T151 are still in time to join the assault on Bulawayo - which is roughly what STW suggested in
http://forums.civfanatics.com/showpost.php?p=11489949&postcount=3459.
As far as I can see, the details of the T153 Hammsville gift to Shaka and the T154 Shaka flip to Hinduism before the DOW work fine with the above. We'll have to plan for some maces to re-position near GT and Hammsville after we re-open borders T153. If Liz goes to peace with Hammu, this might be a pain?
Below are screenshots describing my suggested plan
