Why can't I build Oracle there? (tile unavailable to me)

[Tomasz]

Oracle must be built on hills but when I click to start building it and the game highlights all the tiles with hills on them it doesn't show me all available tiles. What gives? The tile where I want to build it belongs to my city, there's nothing on it (no resources or improvements), it's close to the city center, it's plains, grassland etc. but still I can't do it. Can anybody tell me why not? Is there some rule I'm not familiar with? Is it a bug?

[Stormwinds]

Could you provide a screenshot? It would go a long way to telling you what's wrong.

[Tomasz]

How do I attach a screenshot? Can't see any option.

[Sticky Wicket]

Remember If there are woods or rainforest and you haven't discovered the techs to remove them you cannot build in a hex.

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Originally posted by Tomasz:

How do I attach a screenshot? Can't see any option.

You have to make the screenshot public (upload it to your profile), then open up the shared screenshot in your profile and copy-paste the steam id number here.

[grognardgary]

Make sure it's with the city boundary not merely three or fewer hexes away.

[pryt]

"it's close to the city center, it's plains, grassland" ... is it plains or grassland or is it a hill (plains hill / grassland hill? Plains + Grassland at the same time is impossible, since these are different things.

[anynamewilldo]

It is showing you all available tiles for it. The highlighted grassland hill tiles you can build it.
Grassland plus hill is required to build it. Yes that is a tile. Grassland with hills is a tile just like plains with a hill on it is a tile just like grassland without a hill is a tile. etc... Later you could find a resource like iron on it also. A coastal water tile could have a reef on it or a resource on it or both and so on. And yes it is possible to get a map without a place to put down what you want in the starting area.

[Tomasz]

Thank you all, guys, for the answers.

Originally posted by Sticky Wicket:

You have to make the screenshot public (upload it to your profile), then open up the shared screenshot in your profile and copy-paste the steam id number here.

Oh, I get it. Thanks.

Originally posted by Sticky Wicket:

Remember If there are woods or rainforest and you haven't discovered the techs to remove them you cannot build in a hex.

I believe that was the case. There was woods on it. After researching "Mining" more tile became available.

But...

What about "Marble". I had a tile with Hills and Marble on it. It says that Marble can be improved by "Quarry". I researched it but still can't build Oracle there.

[Stormwinds]

Originally posted by Tomasz:

But...

What about "Marble". I had a tile with Hills and Marble on it. It says that Marble can be improved by "Quarry". I researched it but still can't build Oracle there.

Marble is a luxury resource. You cannot build districts or wonders overtop of luxury or revealed strategic resources.

[Tomasz]

Originally posted by Stormwinds:

Originally posted by Tomasz:

But...

What about "Marble". I had a tile with Hills and Marble on it. It says that Marble can be improved by "Quarry". I researched it but still can't build Oracle there.

Marble is a luxury resource. You cannot build districts or wonders overtop of luxury or revealed strategic resources.

Thanks. Can I find all these rules somewhere? I couldn't find it anywhere in the Civilopedia.