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For example, in detecting a dissimilar coin in three weighings ( = ), the maximum number of coins that can be analyzed is = .Note that with weighings and coins, it is not always possible to determine the nature of the last coin (whether it is heavier or lighter than the rest), but only that the other coins are all the same, implying that the last coin is the ...
Sylver coinage is an example of a game using misère play because the player who is last able to move loses. Sylver coinage is named after James Joseph Sylvester, [2] [3] who proved that if a and b are relatively prime positive integers, then (a − 1)(b − 1) − 1 is the largest number that is not a sum of nonnegative multiples of a and b. [4]
A coin-matching game (also a coin smack [1] or smack game [2]) is a confidence trick in which two con artists set up one victim. The first con artist strikes up a conversation with the victim, usually while waiting somewhere. The con artist suggests matching pennies (or other coins) to pass the time. The second con artist arrives and joins in ...
The goal of the game is for the players on the team without the coin to correctly identify which hand the coin is under. The game typically consists of two- to four-player teams, one on each side of a table. There are no official rules, so rules may vary widely. The game is often played with alcoholic beverages with which to drink as a forfeit.
9th World Puzzle Championship balloon balance puzzle. A balance puzzle is a mathematical puzzle which challenges the solver to distribute a subset of numbers so that the several sides of a stylized diagram representing a balance scale are equal.
Each player conceals and then reveals a number of coins in their hand. Spoof is a strategy game, typically played as a gambling game, often in bars and pubs where the loser buys the other participants a round of drinks. [1] The exact origin of the game is unknown, but one scholarly paper addressed it, and more general n-coin games, in 1959. [2]
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Pitching pennies is a game played with coins. Players take turns to throw a coin at a wall, from some distance away, and the coin which lands closest to the wall is the winner. In Britain the game is also known as pap, penny up or penny up the wall and it is referred to as pitch-and-toss in Rudyard Kipling's poem If—.