Checks without Rolls
A skill check represents an attempt to accomplish some goal, usually
while under some sort of time pressure or distraction. Sometimes,
though, a character can use a skill under more favorable conditions
and eliminate the luck factor.
Taking 10: When your character is not being threatened or dis-
tracted, you may choose to take 10. Instead of rolling 1d20 for the
skill check, calculate your result as if you had rolled a 10. For many
routine tasks, taking 10 makes them automatically successful. Dis-
tractions or threats (such as combat) make it impossible for a
character to take 10. In most cases, taking 10 is purely a safety
measure —you know (or expect) that an average roll will succeed
but fear that a poor roll might fail, so you elect to settle for the
average roll (a 10). Taking 10 is especially useful in situations where
a particularly high roll wouldn’t help (such as using Climb to ascend
a knotted rope, or using Heal to give a wounded PC long-term care).
For example, Krusk the barbarian has a Climb skill modifier of +6
(4 ranks, +3 Strength modifier, –1 penalty for wearing studded
leather armor). The steep, rocky slope he’s climbing has a Climb DC
of 10. With a little care, he can take 10 and succeed automatically.
But partway up the slope, a goblin scout begins pelting him with
sling stones. Krusk needs to make a Climb check to get up to the
goblin, and this time he can’t simply take 10. If his player rolls 4 or
higher on 1d20, he succeeds.
Taking 20: When you have plenty of time (generally 2 minutes
for a skill that can normally be checked in 1 round, one full-round
action, or one standard action), you are faced with no threats or
distractions, and the skill being attempted carries no penalties for
failure, you can take 20. In other words, eventually you will get a 20
on 1d20 if you roll enough times. Instead of rolling 1d20 for the skill
check, just calculate your result as if you had rolled a 20. Taking 20
means you are trying until you get it right, and it assumes that you
fail many times before succeeding. Taking 20 takes twenty times as
long as making a single check would take. Since taking 20 assumes
that the character will fail many times before succeeding, if you did
attempt to take 20 on a skill that carries penalties for failure (for
instance, a Disable Device check to disarm a trap), your character
would automatically incur those penalties before he or she could
complete the task (in this case, the character would most likely set
off the trap). Common “take 20” skills include Escape Artist, Open
Lock, and Search.
For example, Krusk comes to a cliff face. He attempts to take 10,
for a result of 16 (10 plus his +6 skill modifier), but the DC is 20, and
the DM tells him that he fails to make progress up the cliff. (His
check is at least high enough that he does not fall.) Krusk cannot
take 20 because there is a penalty associated with failure (falling, in
this case). He can try over and over, and eventually he may succeed,
but he might fall one or more times in the process. Later, Krusk
finds a cave in the cliff and searches it. The DM sees in the Search
skill description that each 5-foot-square area takes a full-round
action to search, and she secretly assigns a DC of 15 to the attempt.
She estimates that the floors, walls, and ceiling of the cave make up
about ten 5-foot squares, so she tells Krusk’s player that it takes 1
minute (10 rounds) to search the whole cave. Krusk’s player gets a
result of 12 on 1d20, adds no skill ranks because Krusk doesn’t have
the Search skill, and adds –1 because that is Krusk’s Intelligence
modifier. His roll fails. Now the player declares that Krusk is going
to search the cavern high and low, taking as long as it takes. The DM
takes the original time of 1 minutes and multiplies it by 20, for 20
minutes. That’s how long it takes for Krusk to search the whole cave
in exacting detail. Now Krusk’s player treats his roll as if it were 20,
for a result of 19. That’s good enough to beat the DC of 15, and
Krusk finds an old, bronze key discarded under a loose rock.
Ability Checks and Caster Level Checks: The normal take 10
and take 20 rules apply for ability checks. Neither rule applies to
caster level checks (such as when casting dispel magic or attempting
to overcome spell resistance).
