Thanks Martin.
Yes, I have spotted the "save game" button now, too.
Weird, either I must have missed it (although I have been looking really hard), or it was added recently ?
Anyway, thanks, solved ... hopefully, unless they remove this functionality again.
thanks, Martin!
Which button do you use?
If a game ends by resignation, I don't see any such button.
I see a Save Game option after resignation.