Quote:
Originally Posted by Tywyll
Wow, I didn't realize there were such differences in the BRP systems. Could you show your math on how you came to those conclusions? I don't doubt you are correct, I'm just curious in the differences.
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For simplicity's sake, let's go back to just looking at a single attack. We're still assuming two fencers both with skill 90%.
CoC: To successfully hit, you need to roll below your skill (90% chance) and your enemy needs to fail to roll below his (100%-90%=10%). Thus, .9*.1=.09=9% chance of a successful hit.
SB5: Here it gets more complicated; you can successfully hit by rolling a normal success (19-90 on the dice - a 72% chance) and your enemy rolling a failure (10% chance), or by rolling a critical (18% chance) and your opponent a normal success or a failure (72%+10%=82% chance). Thus, the total chance of a successful hit is .72*.1+.18*.82=.22=22% (approx.)
Hypothetical neutral system: This could be implemented in various ways, but, by definition, the chance of a success against an equally skilled opponent is 50%.
The chance of at least one success in two tries, where the chance of success in a single try is X, is Y=1-(1-X)^2. Putting in X=9%, 22%, 50% gives Y=17%, 39%, 75%, respectively.
(19% above is an error for 17%.)