八皇后问题是：在8*8的国际象棋棋盘上，安放8个皇后，要求没有一个皇后能够“吃掉”任何一个其他的皇后，即没有两个或两个以上的皇后占据棋盘上的同一行、同一列或同一条对角线。-Eight queens problem is: 8* 8 chess board, placed eight at Queen' s, a Queen' s request was not able to " eat"　any of the other Queen' s, that is, no two or more of the Queen' s occupied the same board OK, the same column or the same diagonal.