 According to a 2010 study conducted by Jon McLoone for Wolfram Research, the most difficult words to guess include "jazz", "buzz", "hajj", "faff", "fizz", "fuzz" and variations of these.The game show "Wheel of Fortune" is based on Hangman but with the addition of multiple-word puzzles, a roulette-styled wheel, and cash awards.Brazil also had a show in the 1960s and again from 2012–2013 called "Let’s Play Hangman", hosted by the legendary Silvio Santos.