Sam Loyd e o jogo do 15

The App Sam Loyd and the 15 game is an educational one that became known in Brazil in the 60s as a 15-tablet puzzle. It was created by American Mathematician Samuel Loyd in 1872. The challenge is to order the numerical sequence from 1 to 15, having a vacant place for repositioning the numbers. The user will be able to time their time if they wish, but they will have to do it with resources external to the application. It was decided not to use a pressure or competition mechanism, but rather to value the task performed.