Yeah that city is ours!
But Let's Discuss the reality of it
We have 2 options:
1. Raze (potentially) in 3 turns this is possible. Earliest T90.
2. Capture. Possible on T97 at the latest.
Ok So Let's Look at the facts:
1. We found the City on T72 (thus the latest it would of been created on T71-72 Interturn)
2. It is still size 1.
3. It is currently working a +2

tile.
So Conclusions:
1. Barbs built a worker first (hence didn't grow) as 22 / 2 = 11. 71+11 = 82.
2. Barbs are now growing. The reason they are working the +2

+ 1

tile is they want archery (high priority for them)
3. Worker First = 15 Turns (+1

+ 3

&

tile, they wouldn't of worker the current tile while buildign a worker.
Final Conclusion:
Worst Case Growth:
71 (discovered) + 15 (worker) + 11 (growing) =
T97.
So do we wait?
Pro:
We don't need a settler for it, hence "blocker" city is set up sooner
Con:
Kaz could show up and try claim it (G_W it is ours we don't move on that)
Archers could show up
So Let's Look again at what we have in the Area 5 axes converging. 2 Of them can be CR1 to hit the archer.
Now 5 Axes is overkill IMO and we want to scout to the North, But there is no reason we can't hold this ground from Kaz until after it grows then capture it.
So proposed action:
1.
Watersof Attacks next turn over the river for 2 XP.
2.
Watersof promotes to Cr1 and moves to Tile 1 SW of Angle. Purple Path. Arrival T90. Fortify.
3.
IJzer Moves on the Yellow Path Arrival
T94. But Can Attack at
T90 if growth happens.
5.
Auld Has to Kill that warrior next turn then (worst case) then move on the Red Path. ETA
T96
3. Barentz moves on the Green Path.
T93 Arrival Starts to Pressure Kaz
4. Zuur Moves on the Blue Path.
T92 If Angle needs Support he can go south If not North.