Difference between revisions of "THAC0"

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An acronym for '''[[Roll to Hit|To Hit]] [[Armour Class]] Zero''' with the number "0" used as the final letter.  The number required to hit a zero armour class (AC) on a d20 is used to count backwards as the number for AC increases.  For example, a combatant needing a 17 to hit AC 0 would need a 16 to hit AC 1, a 15 to hit AC 2, a 14 to hit AC 3 and so on.  The number to hit equals the target's THAC0 minus the target's AC.
 
An acronym for '''[[Roll to Hit|To Hit]] [[Armour Class]] Zero''' with the number "0" used as the final letter.  The number required to hit a zero armour class (AC) on a d20 is used to count backwards as the number for AC increases.  For example, a combatant needing a 17 to hit AC 0 would need a 16 to hit AC 1, a 15 to hit AC 2, a 14 to hit AC 3 and so on.  The number to hit equals the target's THAC0 minus the target's AC.
  
{| class="wikitable" style="text-align: center; background-color:#d4f2f2;"
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{| class="wikitable" style="float:left; margin-right: 15px; text-align: center; background-color:#d4f2f2;"
 
|+Attacker's [[Experience Level|Level]]/[[Hit Dice]]
 
|+Attacker's [[Experience Level|Level]]/[[Hit Dice]]
! Attacker !! 1st !! 2nd !! 3rd !! 4th !! 5th !! 6th !! 7th !! 8th !! 9th !! 10th !! 11th !! 12th !! 13th+
+
! Attacker !! 1st !! 2nd !! 3rd !! 4th !! 5th !! 6th !! 7th !! 8th !! 9th !! 10th !! 11th !! 12th !! 13th !! 14th !! 15th !! 16th+
 
|-
 
|-
| 1 || 0 || 1 || bravo
+
| Assassin || 20 || 19 || 19 || 18 || 17 || 16 || 15 || 15 || 14 || 13 || 12 || 11 || 11 || 10 || 10 || —
 +
|-
 +
| Cleric or Druid || 20 || 20 || 19 || 18 || 18 || 17 || 16 || 16 || 15 || 14 || 14 || 13 || 12
 
|}
 
|}

Revision as of 00:37, 30 July 2020

An acronym for To Hit Armour Class Zero with the number "0" used as the final letter. The number required to hit a zero armour class (AC) on a d20 is used to count backwards as the number for AC increases. For example, a combatant needing a 17 to hit AC 0 would need a 16 to hit AC 1, a 15 to hit AC 2, a 14 to hit AC 3 and so on. The number to hit equals the target's THAC0 minus the target's AC.

Attacker's Level/Hit Dice
Attacker 1st 2nd 3rd 4th 5th 6th 7th 8th 9th 10th 11th 12th 13th 14th 15th 16th+
Assassin 20 19 19 18 17 16 15 15 14 13 12 11 11 10 10
Cleric or Druid 20 20 19 18 18 17 16 16 15 14 14 13 12