Talk:THAC0/@comment-2.10.128.52-20181017202259

(Attacker's roll) + [(target's AC modifier) - (attacker's THAC0)] = result With the result number plus target's effective AC, which is not shown, greater than or equal to zero will be a hit.

I think that [result + target total AC] must be strictly superior to zero, rather than superior or equal, for the hit to connect.

The combat log info on hit rolls also seems harder to grasp and perhaps incorrect when the attacker's Luck has been modified (fatigue, alcohol, some spells and effects). In that case, the "Attacker's roll" part of the equation appears to remain correct and safe from schenanigans.