Introduction - If you have any usage issues, please Google them yourself
Write programs to solve the eight Queens chess problem: in 8 rows and 8 columns of placing 8 Queens on the Board, made it impossible for either a Queen eating other 7 Queen (Note: Queen may eat with her peers or other pieces on the same column, or diagonal), and the results are displayed in a certain way.
For example, when you find out a solution of the following, you can output the following message to indicate that the solution (the output display coordinate position of the Queen and "Checkerboard"-Board position of the Queen in a "Q" characters, other locations for the "+" character).
(1,1) (5,2) (8,3) (6,4) (3,5) (7,6) (2,7) (4,8)
Q+++++++
++++++ Q+
++++ Q+++
+++++++ Q
+ Q++++++
+++ Q++++
+++++ Q++
++ Q