The wrinkle, however, which gives the game its unpredictability is the wheel itself. If at any time you think you know the answer, you can solve the puzzle. If the letter you call is not part of the solution, your turn ends and play continues with the next player. Vowels can also be called, but they cost money that will come out of the contestant's winnings.
Contestants take turns calling out consonants, and if those consonants are part of the solution they are revealed on the board, and you receive the prize money that's currently displayed on the wheel. You are given a category (such as 'Things' or 'Proper Name') and a board that displays blank tiles in place of the letters in the word or phrase. The concept of the show is as simple as Hangman.
