I don't know whether this is cool or sad. Fallout 3 passwords were trivially easy to infer from a single guess. They took extra time to reduce the ambiguity and make it easy once you understood the principle.
Were you running a mod?
Were you running a mod?
After a while I figured out "the trick" and could do them in my head and didn't need the program anymore. It was a fun little programming exercise, though.