221B Baker St.

221B Baker Street is a 1987 computer game published by Datasoft, based on an earlier board game of the same name. The game was inspired by the exploits of Arthur Conan Doyle's fictional detective Sherlock Holmes and derives its title from the detective's residence at 221B Baker Street in London. Source: Wikipedia, "221B Baker Street (video game)," available under the CC-BY-SA License.