No, that should be possible. You should be able to build a citadel up to one tile outside of your borders in any place at any time. No idea why not, here.
I'm QUITE sure you can't do that when you're in that player's territory AND not at war with them though.
I've seen that map before...
You do know about the last action icon, with the three arrows, that opens a list of additional actions for the unit?
I'm QUITE sure you can't do that when you're in that player's territory AND not at war with them though.
i remember sometimes i can not construct Citadel in a jungle or forest tile. I still don't understand why
You can't build any other improvement on an oasis tile, so I maybe the Citadel is blocked too. Never really tried though, it's just a guess.Thanks BlackWizard, but both my games where this happened were late game. Recent one, the bugged tile was an oasis.
So, no one else has experienced this?
What about buying the tile in your first screenshot and then plant the general?