To-hit
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When attacking a monster, you must make a successful to-hit roll in order to actually strike it. To do this, your to-hit bonus must exceed the roll of 1d20.[1]
Contents
Melee
These are some of the factors that might affect your chance to hit in melee:
Weapon and equipment
- A bonus (or penalty) equal to the weapon's enchantment, if using a weapon.[2]
- The natural to-hit bonus of the object used to strike.[3]
- The artifact's to-hit bonus, if using an artifact weapon against an appropriate target.[4]
- A bonus equal to the enchantment level(s) of any rings of increase accuracy you are wearing.[5]
- -20 if you are a Monk wearing body armor.
- If you are a Monk not wearing body armor or a shield, and not wielding any item, +(experience level / 3)+2.[6]
Your characteristics and status
- +1 for all melee attacks.[7]
- Bonuses based on your strength and dexterity (see strength table and dexterity table).[8]
- A bonus equal to your Luck.[9]
- A bonus equal to your experience level, if you are in your natural form.
- A bonus equal to your monster type's "level" if you are polymorphed.[10]
- +1 if you are at experience level 1 or 2.[11]
- -1 if you are burdened, -3 if you are stressed, or -5 if you are strained; if you are overtaxed or overloaded you will be unable to attack at all.[12]
- -3 if you are currently trapped.[13]
- If you are engulfed, you always hit.[14]
Skills
- A bonus or penalty from -4 to +3 (see table), depending on your skill with the wielded weapon, if you are not two-weaponing.[15]
- A penalty from -9 to -3 (see table), depending on your two weapon combat skill (or your weapon skill, if it is lower), if you are two-weaponing.[16]
- A bonus from +1 to +7 (see table), depending on your bare hands or martial arts skill, if you attack without any wielded item.[17]
- A penalty if riding a steed: -2 if restricted or unskilled in riding, -1 if basic, and no penalty if skilled or better.[18]
- An additional -2 if you engage in two weapon combat while riding a steed.[19]
Monster characteristics and status
- The target monster's AC.[20]
- +2 (cumulative) against a stunned, fleeing, or sleeping monster.[21]
- +4 against a paralysed monster.[22]
Monster-specific
- +2 for using a blessed weapon against a demon or undead.[23]
- +2 for using any spear against a "kebabable" monster: xorns, nagas, dragons, jabberwocks, and giants.[24]
- +4 for using a trident against any swimmer that is in water.[25]
- +2 for using a trident against any S or ; that is not in water.
- +2 for using a pick-axe or mattock against a xorn or earth elemental.[26]
- +1 if you are an elf (either naturally or by polymorph) hitting any orc.[27]
Ranged
These are some of the factors that might affect your chance to hit when throwing or kicking items, or when applying a polearm:
- -1 for all ranged attacks.[28]
- A bonus based on your dexterity.
- A bonus equal to your Luck.[29]
- A bonus equal to your experience level, if you are in your natural form.
- A bonus equal to your monster type's "level" if you are polymorphed.[30]
- A bonus based on how far away the target is. A target adjacent to you gives a +2 bonus; this decreases by 1 for each move's worth of distance, to a maximum penalty of -4.
- -2 if you are wielding any bow while wearing gauntlets of power.
- -3 if you are wielding any bow while wearing gauntlets of fumbling.
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Bonus tables
Strength bonus
The strength bonus applies to melee attacks only.
| Strength | Bonus |
|---|---|
| 3 to 5 | -2 |
| 6 to 7 | -1 |
| 8 to 16 | 0 |
| 17 to 18/50 | +1 |
| 18/51 to 18/99 | +2 |
| 18/** to 25 | +3 |
Dexterity bonus
The dexterity bonus applies to both melee and ranged attacks.
| Dexterity | Bonus |
|---|---|
| 3 | -3 |
| 4 to 5 | -2 |
| 6 to 7 | -1 |
| 8 to 14 | 0 |
| 15 | +1 |
| 16 | +2 |
| 17 | +3 |
| 18 | +4 |
| 19 | +5 |
| 20 | +6 |
| 21 | +7 |
| 22 | +8 |
| 23 | +9 |
| 24 | +10 |
| 25 | +11 |
Weapon skill bonus
The weapon skill bonus applies to both melee and ranged attacks.
| Skill | Bonus |
|---|---|
| Restricted or Unskilled |
-4 |
| Basic | 0 |
| Skilled | +2 |
| Expert | +3 |
Two weapon penalty
The two weapon combat penalty applies to melee attacks only. It uses the lesser of the two weapon combat skill and your primary weapon's skill.
| Skill | Penalty |
|---|---|
| Restricted or Unskilled |
-9 |
| Basic | -7 |
| Skilled | -5 |
| Expert | -3 |
Bare hands bonus
The bare handed combat bonus applies when hitting in melee without any wielded item. Monks and Samurai get the martial arts bonus; other roles get the bare hands bonus.
| Skill | Bare hands bonus |
Martial arts bonus |
|---|---|---|
| Unskilled | +1 | (n/a) |
| Basic | +1 | +3 |
| Skilled | +2 | +4 |
| Expert | +2 | +5 |
| Master | +3 | +6 |
| Grand Master | +3 | +7 |
References
- ↑ uhitm.c#line478 (to-hit roll)
- ↑ weapon.c#line133 (enchantment bonus for weapons)
- ↑ weapon.c#line137 (item to-hit bonus)
- ↑ weapon.c#line164 (artifact bonus)
- ↑ uhitm.c#line236 (your to-hit bonus from rings,
u.uhitinc) - ↑ uhitm.c#line267 (monk penalty and bonus)
- ↑ uhitm.c#line236 (base +1 for melee)
- ↑ weapon.c#line688 (strength and dexterity bonuses)
- ↑ uhitm.c#line236 (Luck bonus)
- ↑ uhitm.c#line237 (natural and polymorphed level bonuses)
- ↑ weapon.c#line703 (beginner to-hit bonus)
- ↑ uhitm.c#line277 (weight penalty)
- ↑ uhitm.c#line278 (trap penalty)
- ↑ uhitm.c#line478 (always hit if engulfed)
- ↑ weapon.c#line1109 (skill bonus)
- ↑ weapon.c#line1118 (two weapon penalty)
- ↑ weapon.c#line1129 (bare hands bonus)
- ↑ weapon.c#line1146 (base riding penalty)
- ↑ weapon.c#line1154 (two weapon riding penalty)
- ↑ uhitm.c#line236 (monster AC)
- ↑ uhitm.c#line250 (monster status bonuses)
- ↑ uhitm.c#line257 (paralysed monster bonus)
- ↑ weapon.c#line142 (blessed bonus against demons/undead)
- ↑ weapon.c#line145 (spear versus "kebabable" monster)
- ↑ weapon.c#line149 (trident versus swimmers)
- ↑ weapon.c#line155 (pick versus phasing and thick-skinned)
- ↑ uhitm.c#line264 (elves versus orcs)
- ↑ dothrow.c#line1198 (base -1 for ranged)
- ↑ uhitm.c#line236 (Luck bonus)
- ↑ uhitm.c#line237 (natural and polymorphed level bonuses)
