The participating children close their eyes and each receive a Stapelstein® Original in different colors placed on their heads by the game leader. On command, all the children open their eyes at the same time and can now only see the Originals on the heads of the others. In turn, each participating child may now ask "Yes-No questions" to find out what color their own Original is, such as: "Is my Original the same color as a lemon?". The other children answer with yes or no. If the asking child receives a 'Yes', they may continue to ask and try to solve the puzzle until they receive a 'No'. Upon this answer, the next child takes their turn, until all have guessed their color.