3 hours ago, Randy G said:It's a "should be". Except in the cases of opposed checks, anything beyond Formidable difficulty is listed as impossible. So it's not RAW, house ruled, or Devs answered. It's an agreed upon interpretation.
Agreed upon by who and where, because that sounds like a house rule to me, and one me and the other person who also GMs in the group I play in happen to also agree with, but I wondered if there had been a dev response on it. The difference between an 8 purple check and 3 red 2 purple is enough to make a difference. GGPPRRR has an 8.6% chance of success, against 8 purple it is about half that (roughly for estimates sake1 in 12 vs 1 in 20.
Edited by syrath