Expansion Passing Rules?

[Elmdor]

Hello, I've played the original Terra Mystica board game a lot in the past, but this version gives me the option to use the expansion passing rules. The problem is I don't know what the rule is. The game only opens up rules for the orignal version and of course it doesn't mention the expansion at all.

I can't find anywhere in the game what this rule is and I'm assuming it lets you use it for balancing purposes. I tried searching the web and the only rule book I can find is the orginal edition.

Can someone please let me know what this rule does or am I misunderstanding what that checkbox does when I go to start a game.

Side note I'm interested in reading what all the Fire & Ice expansion adds rule wise.

[Narkulus]

I believe in the original rules, the turn ALWAYS passes clockwise in the same order with the first player to pass beginning the next round.
In the expansion, turn order is variable and turns take place strictly in the order that players passed with the first to pass playing first and the last to pass going last.

Here's a pdf for the expansion.
http://tesera.ru/images/items/430290/Terra%20Mystica%20Fire%20and%20Ice%20Rrules%20eng%20web.pdf

[Elmdor]

Awesome thank you very much!

[Dr0W]

I'm pretty sure that inside the TM game you can find links to both rulebooks :P

Also it's not mentioned but there are some round, bonus and city tiles that come from a mini-expansion and are not included in the base game. They add balance to the game.