Uhm, but Marcel, the Austrian Go Association has its own domain, why not install a phpBB forum there?

And maybe the admins of L19 would assist you in installing whatever is needed for the SGF stuff?

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“The only difference between me and a madman is that I’m not mad.” — Salvador Dali ★ Play a slooooow correspondence game with me on OGS?

One option is to make a group where only users of that group see the forum. The downside is that users have to be added to the group one by one.

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be immersed