|This article relies largely or entirely upon a single source. (November 2014)|
Liar's poker is an American bar game that combines statistical reasoning with bluffing, and is played with the eight digits of the serial numbers on a U.S. dollar bill. The numbers are usually ranked with a zero counting as a ten, and a 1 being highest as "ace". Normally the game is played with a stack of random bills obtained from the cash register. The objective is to guess how often particular digits appear across all bills held by players, with guesses increasing in value or quantity until a player challenges the most recent guess.
Liar's dice is a similar game played with dice, often as a drinking game.
Each player takes a dollar bill and looks at its serial number, without letting any other players see. A player is chosen to start, and they make an opening bid on how many of a particular digit they believe appears across all serial numbers held by the group. For example, if the first player bids three 6s, he is predicting that there are at least three 6s among all the players' banknotes, including his own.
The next player can bid a higher number at that level (three 7s), any number at a higher level (four 5s) or challenge. The game continues clockwise around the table until a particular bid attracts a challenge from every player other than the bidder.
When a challenge is made, each player reveals how many of the bid number they have on their note's serial number. If the challenge was correct (and the number on the bills is lower than the challenged bid), the bidder loses a dollar to each of the other players. If the challenge was incorrect, the bidder wins a dollar from each of the other players.
Trading floor personnel of the kind to be found in Michael Lewis's book in the 1980s often played a variant on the above whereby a player who is called by all the other players can raise his own bid, thereby doubling the bet. For example, if he is called by all the other players on five fours he can then bid, say, five fives, with the bet doubled to two dollars. Called again, he might then go to five sixes, with the bet increased to four dollars. In this way, a clever player might reach his intended target of, say, five aces and win, say, sixteen or thirty-two dollars from each of the remaining players instead of merely one dollar. For this reason, many finance professionals discounted Michael Lewis's story of the "million-dollars-no-tears" bet allegedly proposed by CEO John Gutfreund on the grounds that there can be no single-stake bet in Liar's Poker because one cannot know whether or not the bet will be escalated in this way.
In popular culture
- In the 1965 film Cat Ballou, the sheriff is confronted playing liar's poker at the barn dance.
- In the 1972 film "The Getaway", Steve McQueen's character Doc McCoy challenges Ali MacGraw's character to a game while looking at a bill, by saying "Five fours".
- Elliott Gould's and Jim Bouton's characters play a round as friends in the beginning of the 1973 neo noir film, The Long Goodbye.
- In the 1977 movie Semi-Tough, Burt Reynolds' and Jill Clayburgh's characters play an ongoing game of liar's poker periodically throughout the movie.
- Characters on the show Quincy M.E. were often seen playing Liar's poker.
- In the WKRP in Cincinnati episode "Herb's Dad", Herb's father, and later Herb himself, play liar's poker with Johnny and Venus.
- In Season 3, episode 8 of Magnum, P.I., "Foiled Again," Magnum and his two friends pass the time by playing liar's poker.
- In his 1989 book Liar's Poker, Michael Lewis details how Salomon Brothers traders would play liar's poker. He recounts how John Meriwether once challenged CEO John Gutfreund to a game of liar's poker for stakes of ten million dollars.
- A game of liar's poker was played in an episode of the TV series Hustle (Season 3, Episode 3) where one of the main characters plays and loses against two merchant bankers.
- In The Wire episode Dead Soldiers, Tommy Carcetti and Anthony Gray play a game.
- In the 2011 movie Hall Pass, the group of characters play a game.
- Anne O Faulk's novel Holding Out uses the game as a plot point.
- Michael Lewis (2006). Liar's Poker. Hachette UK.