N皇后问题，N皇后放置过程的现实。

由八皇后问题扩展开来，在N*N的棋盘上摆放N个皇后，使其不能互相攻击，即任意两个皇后都不能处于同一行、同一列或同一斜线上。求可能的解决方案，并显示每一种解决方案的皇后放置过程。-N Queen' s problem, N Queen placed the reality of the process. Expansion by opening eight to question Queen' s, at the N* N chessboard placed on a Queen N, making it unable to attack each other, that is, two Queen' s can not be arbitrary in the same line, same column or on the same diagonal. Seek possible solutions, and show a solution for each place of the Queen' s course.