In Phase 10, in specific phases, you have to complete "run"s of cards, like this:
4, 5, 6, 7, 8, 9, 10, 11
But recently I've come across the discussion whether this is a valid run?
11, 12, 1, 2..
According to the rulebook, you have to agree on this before the game (elsewise, you can play runs like this). But according to Wikipedia:
Runs can go from one to twelve.
In my understanding, this does not include from twelve to one!
What is the common agreement for this?