So, I thought I’d figured this out, and it turns out I haven’t. I’d like to get a real sense of what the difficulty “should be,” what it’s meant to be, and I seem to be finding a large number of answers.
Here’s the various descriptions of difficulty that I’ve found so far:
From Burning Wheel Gold, page 15:
OB 1 “A simple act done with little thought.”
OB 2 “An act performed routinely at your job.”
OB 3 “An act you can accomplish if you concentrate.”
OB 4 “A risky act.”
OB 5 “An act that requires expertise.”
OB 6 “An act that requires a heroic effort.”
OB 7 “An improbable feat.”
OB 8 “An act requiring preternatural ability or a lot of help.”
OB 9 “An act deemed nearly impossible.”
OB 10 “A miracle.”
However, according to the Burning Wheel GM screen and the wiki introduction to the rules:
Ob 1 Easy
Ob 2 Routine
Ob 3 Difficult
Ob 4 Extremely Difficult
Ob 5 Master-level
Ob 6 Heroic Effort
Ob 7 Ludicrously Difficult
Ob 8 Nearly Impossible
Ob 9 Phenomenally Difficult
Ob 10 Miraculous
Almost identical to the GM screen and wiki introduction is the Monster Burner, also page 15:
Ob 1 “Easy or simple tasks.”
Ob 2 “Routine everyday stuff.”
Ob 3 “Difficult.”
Ob 4 “Extremely difficult.”
Ob 5 “Master-level (ye olde beheading with one cut)”
Ob 6 “Requires a heroic effort.”
Ob 7 “Ludicrously difficult.”
Ob 8 “Nearly impossible.”
Ob 9 “Phenomenally difficult.”
Ob 10 “Miraculous.”
I’ve done a probability sheet here.
I’ve also gotten some feedback on this thread, from user Wayfarer:
(emphasis in original, changed italics to bold for visibility)
The difference between Burning Wheel Gold and… well, everywhere else is staggering. I’m hoping to get a sense from other players as to what you guys find the actual best sense of difficulty for the OBs, based on experience.