@questioneer:
It will be best playing with 4-6 players, however 7-9 players can be possible for some newbies to team up with the expert players.
US,UK,USSR, GER, JAP- expert players
ITA, ANZAC, FRA, CHINA- newbie players. A ten year-old could play China.
7 maybe the best in this case though with 5 exper players and 2 newbie (one plays ITA and the other plays ANZAC, FRA, CHINA)- this keeps the newbie from being bored I think.
You can play with 9 but you will have a couple people drop out possibly because of the long turns. I think 7 is the BEST you may have for people to commit to a full game all the way through.
If you have that many people wanting play with half of them being newbies, I say reverse what you’re suggesting and give the “major” powers to the newbies and let the experts play the “minor” powers. Then when some of the “experts” get knocked out, they can help out the newbies as teammates/advisers/co-captains, at least for one game.
And hey, with the UK Pacific having a separate economy, why not have 10 players? :-P