A detailed explanation of knowing a blow.

1. When a character uses his good weapon, it will play a greater role, but when he uses his bad weapon, it will be much worse, which is reflected in the rewards and punishments of damage, hit rate, knowing hit rate, attack speed and other items.

2.THAC=00 is the abbreviation of To Hit armor level 0, which means: the hit rate of the attack when the target AC is 0. In concrete calculation, the AC of the target is subtracted from THAC0, and the obtained value is compared with the D20 thrown. If it is less than D20, the attack succeeds, otherwise it fails.

Obviously, the smaller the THAC0, the better. For example, if a soldier with THAC0 of 2 attacks the character of AC-7 above, 2-(-7) = 9, that is to say, the result of throwing D20 by the attacking soldier must be greater than 9 to successfully hit the target.

Then, if the soldier's THAC0 in the above example can be less than -7, then the difference between THAC0 and target AC is less than 0, and D20 is greater than 0 in any case, so it is basically inevitable to hit. Similarly, if THAC0 is so big that the difference is reduced by more than 20, then it is unlikely to hit. I say "basically" and "unlikely" here because in this case, the game still sets a minimum hit rate and a minimum avoidance rate of 5%. When the character's D20=20, regardless of both sides' THAC0 and AC conditions, they are fortune-tellers, and the damage during the attack can be doubled. This situation is also a heavy blow or fatal blow; On the other hand, if D20= 1, it is an attack that is bound to fail, which is a critical miss. 1, increase a certain ability value. For example, in the fairyland legend, increasing the LUK value by 3 points can increase the hit rate of 1%.

2, through special equipment, such as the "Devil's Golden Hammer" in "The Brave Fight the Dragon", the attack effect is a knowing blow except a miss.

3. Through specific props, such as the prop "Understanding Dan" used in Swallowing Heaven and Earth, you can get an understanding blow, or you can get Yan Liang with "Zheng Xuan's letter". Every blow is an understanding blow.

4. By upgrading skills, such as the corresponding skills of Amazon warriors in Diablo II.

5, through the equipment inlaid with gemstones, such as the current online games are generally set.

6. Attacking in a specific way, such as backstab and thieves in European and American games, can generally trigger a knowing strike.

7. The potential attributes of some special occupations.