Fizz buzz

Fizz buzz is a group word game for children to teach them about division.[1] Players take turns to count incrementally, replacing any number divisible by three with the word "fizz", and any number divisible by five with the word "buzz".

Play

Players generally sit in a circle. The player designated to go first says the number "1", and the players then count upwards in turn. However, any number divisible by three is replaced by the word fizz and any number divisible by five by the word buzz. Numbers divisible by 15 become fizz buzz. A player who hesitates or makes a mistake is eliminated from the game.

For example, a typical round of fizz buzz would start as follows:

1, 2, Fizz, 4, Buzz, Fizz, 7, 8, Fizz, Buzz, 11, Fizz, 13, 14, Fizz Buzz, 16, 17, Fizz, 19, Buzz, Fizz, 22, 23, Fizz, Buzz, 26, Fizz, 28, 29, Fizz Buzz, 31, 32, Fizz, 34, Buzz, Fizz, ...

Other variations

In some versions of the game, other divisibility rules such as 7 can be used instead. Another rule that may be used to complicate the game is where numbers containing a digit also trigger the corresponding rule (for instance, 52 would use the same rule for a number divisible by 5).[2]

Programming

Fizz buzz (often spelled FizzBuzz in this context) has been used as an interview screening device for computer programmers.[3][4] Writing a program to output the first 100 FizzBuzz numbers is a trivial problem for any would-be computer programmer, so interviewers can easily filter out those with insufficient programming ability.

References
  1. Rees, Janet (2002). Fizz Buzz: 101 Spoken Numeracy Games – Ideal for Mental Maths. Learning Development Aids. ISBN 978-1855033528.
  2. Hartley, Michael. "Fizz Buzz". Dr. Mike's Math Games for Kids. Retrieved 10 November 2020.
  3. Imran Ghory (2007-01-24). "Using FizzBuzz to Find Developers who Grok Coding." Imran On Tech (blog).
  4. Jeff Atwood (2007-02-26). "Why Can't Programmers.. Program?" Coding Horror (blog).
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