Sleuth (card game)

Sleuth is a strategy deduction card game designed by Sid Sackson and first published by 3M in 1971, also released in French as La Chasse aux Diamants. It is a reworking of the 1967 game The Case of the Elusive Assassin and plays in a similar spirit to Cluedo: players try to deduce the identity of a single missing gem by questioning other players and piecing together the evidence they reveal. The game uses two decks, thirty-six Gem Cards showing different gems such as diamonds, pearls and opals in various types and colors, and fifty-four Search Cards that represent search locations and other game elements. Players take turns searching and interrogating their opponents, using the responses to narrow down which gem card has been secretly removed from play. Sleuth is played by three to seven players, takes thirty to forty-five minutes, and is recommended for ages ten and up. Besides 3M, the game has been reprinted over the years by Avalon Hill, Eagle-Gryphon Games and Face to Face Games.