Sherlock Holmes is a government official. Mycroft has a unique civil service position as a kind of human database for all aspects of government policy. He lacks Sherlock's interest in physical investigation, however, preferring to spend his time at the Diogenes Club. Holmes says that he first developed his methods of deduction as an undergraduate; his earliest cases, which he pursued as an amateur, came from fellow university students. A meeting with a classmate's father led him to adopt detection as a profession, and he spent several years after university as a consultant before financial difficulties led him to accept John H.
Sherlock Holmes pastiches note as Holmes, his mind briefly clear, admits to Watson that he knows that his powers are failing him but simply cannot think clearly enough to get past his age. Everett Kaser has published a series of free reflection games (puzzles) with names referring to Sherlock Holmes stories: "Sherlock: The Game of Logic", "Dinner with Moriarty", "Watson<nowiki>'</nowiki>s Map", "Baker Street", "Scotland Yard" "Inspector Lestrade", "Mrs. Hudson", "Reichenbach Falls", "Queen's Gambit", "Mycroft<nowiki>'</nowiki>s Map". Sherlock Holmes, however, does not appear in the games, except some very small icons. In "Midnight Mysteries: Haunted Houdini" a hidden-object/puzzle video game released in 2012 by MumboJumbo,