d6-based stat checks:
One problem with OD&D is that the usual d20-roll-under-stat check doesn't handle variable difficulty well. However, there is actually a core d6-based mechanic buried in various stat descriptions such as open doors rolls (STR), here it is harmonised for my LL game:
d6-based Ability Checks:
In classic versions of D&D, most checks were d6-based (surprise, hear noise, open doors, et al), so this is a return to those roots.
Every stat has a bonus as per STR (3: -3 4-5: -2 6-8: -1 13-15: +1 16-17: +2 18: +3).
STR bonus applies to open doors etc, base 1 in 6.
DEX bonus applies to balance, climb, checks etc, base 1 in 6.
CON bonus applies to endurance checks, base 1 in 6.
INT bonus applies to knowledge/decipher checks, base 1 in 6.
WIS bonus applies to d6 *spot*/search/hear noise (inc Thief ability) roll, base 1 in 6.
CHA bonus applies to persuasion etc rolls, base 1 in 6.
Because it's d6-based the stat bonus is a major factor, but it also handles variable difficulty easily. Default for difficult task (detect secret door) is base 1 in 6, but a task that most people would succeed at half the time can be given a base 3 in 6, so an '18' succeeds automatically.
One problem with OD&D is that the usual d20-roll-under-stat check doesn't handle variable difficulty well. However, there is actually a core d6-based mechanic buried in various stat descriptions such as open doors rolls (STR), here it is harmonised for my LL game:
d6-based Ability Checks:
In classic versions of D&D, most checks were d6-based (surprise, hear noise, open doors, et al), so this is a return to those roots.
Every stat has a bonus as per STR (3: -3 4-5: -2 6-8: -1 13-15: +1 16-17: +2 18: +3).
STR bonus applies to open doors etc, base 1 in 6.
DEX bonus applies to balance, climb, checks etc, base 1 in 6.
CON bonus applies to endurance checks, base 1 in 6.
INT bonus applies to knowledge/decipher checks, base 1 in 6.
WIS bonus applies to d6 *spot*/search/hear noise (inc Thief ability) roll, base 1 in 6.
CHA bonus applies to persuasion etc rolls, base 1 in 6.
Because it's d6-based the stat bonus is a major factor, but it also handles variable difficulty easily. Default for difficult task (detect secret door) is base 1 in 6, but a task that most people would succeed at half the time can be given a base 3 in 6, so an '18' succeeds automatically.