AD&D1e: Weapon vs AC
The Weapons vs AC table in AD&D 1e is one of the many examples in gaming of a good idea executed badly. It was very obviously an afterthought, unplaytested and shoved in at the last minute because some gearhead player demanded it. It is a good idea because on the face of it, weapons should have some variation between them other than the sheer amount of damage they do. After all, historically some weapons were developed to deal with certain armours, blunt weapons to deliver blows through armour which could not normally be pierced, hooked weapons to pull armoured knights off horses to fall on the ground, and so on. It was poorly-executed because no player was going to write down their to-hit rolls vs various ACs on their character sheet, which meant more time in play looking up charts and adding up numbers, and people would of course argue about AC2 coming from plate mail and shield vs it coming from some other armour plus good Dexterity, and so on. This is the reason for the hous