In sequence, each player calls out a consecutive number. If a number is divisible by three, say ‘Fizz’ instead, and if it can be divided by five, say ‘Buzz’. Any number which fulfils both criteria is a ‘Fizzbuzz’. Let’s make it harder by starting with a random number – in this case 25. The sequence would go: Buzz (because 25 can be divided by 5), 26, Fizz, 28, 29, Fizzbuzz, 31, 32, Fizz, 34, Buzz, Fizz, 37, 38, Fizz, Buzz. Copious quantities of alcohol are required to be drunk by anyone who either gets a Fizz or Buzz wrong, who fails in any other way to stick to sequence, or who pauses too long.