Take 20 Knowledge

[Brother Mortimer]

Presuming that you have the skill, and are not in combat or otherwise distracted, is it legal to take 20 on knowledge rolls?

[TriOmegaZero]

Knowledge wrote:

Try Again: No. The check represents what you know, and thinking about a topic a second time doesn't let you know something that you never learned in the first place.

Taking 20 assumes constant retries.

[hogarth]

No, because you can't retry a Knowledge check.

EDIT: 20 seconds too slow. Under the Take 20 rules, it says: "Taking 20 means you are trying until you get it right, and it assumes that you fail many times before succeeding."

[peterrco]

You can only take 20 on a knowledge check with some bard abilities

[hogarth]

peterrco wrote:

You can only take 20 on a knowledge check with some bard abilities

Some oracles get the ability, too (Lore mystery or Enlightened Philosopher archetype).

[Bobson]

I'd probably allow it for knowledge checks made to do research with access to a sufficiently large library, but just for "Do I know this?" checks, definitely not.

[Quantum Steve]

Bobson wrote:

I'd probably allow it for knowledge checks made to do research with access to a sufficiently large library, but just for "Do I know this?" checks, definitely not.

Considering library checks take 1d4 hours, I'd probably allow it, too. Assuming an 8 hour/day limit on studying, that check would take a week to accomplish.