Impressive footage has emerged from Brazil of a three-year-old girl completing a Rubik's Cube in 47 seconds.br br The video, shot by her father earlier this year, shows young Yan Chan-Yani completing the puzzle in just 47 seconds during a competition. br br Rubik's Cubes are said to be a tradition in the family, with Yan Chan-Yani's older brother claiming the title of the fastest for his age - according to the father.