Deduction board game are drawn at random. Notable members of this category include "Black Box" and "Master Mind". Investigation games are board games in which the players generally play as police, detectives or other investigators. The best known game of this type is "Cluedo". In fact, many of games in this category utilize a mechanic known as "The Missing Card," which was developed by Anthony E. Pratt for "Cluedo" ("Clue" in the United States). "The Missing Card" takes a known set of cards (or other token) and removes one or more of them. By gathering information and using deduction and logic, the players
The President of the United States, Detective exception, readers and critics disapproved of the story". The "Glasgow Herald" called it a "stand-out" and "stupendous"; however, "The Encyclopedia of Science Fiction" considers it "eccentric". The story has been cited as an early example of geoengineering in fiction. The President of the United States, Detective The President of the United States, Detective is a science fiction/mystery short story by H. F. Heard. It was originally published in "Ellery Queen's Mystery Magazine" in March 1947, and subsequently republished in "Ellery Queen's Mystery Magazine" in April 1969 and February 1991, in the 1949 anthology "The Queen's Awards", and in the 1975