puzzle taquin

Teasing is a solitary checkerboard game created around 1870 in the United States. His mathematical theory was published by the American Journal of Pure and Applied Mathematics in 1879. In 1891, his invention was claimed by Sam Loyd, at the time the game knew a considerable craze, both in the United States and Europe. It consists of 15 small tiles numbered from 1 to 15 that slide in a frame provided for 16. It consists of putting back in order the 15 tiles from any initial configuration