8 Queens is a simple chess puzzle game where you need to place N queens in a square N by N so that each queen does not “beat” the other, that is, there cannot be two queens on the same vertical, horizontal and diagonal. In the upper right corner there is a button for changing the size of the square, in the lower left corner the button for restarting the level, in the lower right corner the button for passing the level, in the upper left corner the button for minimizing the application. The number in the upper left corner means the number of queens placed, and in the upper right corner the necessary number of queens to be placed on the board.