natural 20 and combat maneuvers

[Nicos]

If a player rolls a natural 20 does he succed in his combat maneuver no matter the CMD of the target?

I have a player with a sorcerer with CMB +5 trying to not get eaten by a crimsom worm CMD 45, he rolls 20, does he scape the grapple?.

[Maezer]

Nicos wrote:

If a player rolls a natural 20 does he succed in his combat maneuver no matter the CMD of the target?

Yes your combat maneuver automatically succeeds on a natural 20.

[asthyril]

Maezer is correct. I believe the actual rules would be that CMB rolls are attack rolls and follow the same rules for them, that a natural 1 always misses and a natural 20 always hits.

[blackbloodtroll]

Attack roll is an attack roll.

[Jiggy]

Or instead of speculating, comparing, or extrapolating, we could all just read the combat maneuver rules from the Combat chapter of the Core Rulebook:

Core Rulebook wrote:

Rolling a natural 20 while attempting a combat maneuver is always a success (except when attempting to escape from bonds), while rolling a natural 1 is always a failure.

[Nicos]

I ruled that the sorcerer scaped from the maw of the crimsom worm btw, I suppose it was the right thing to do.