在n*n格的棋盘上放置彼此不受攻击的N各皇后，皇后可以攻击与其处在同一行或同一列或同一斜线上的棋子。-Lattice in the n* n chessboard placed on each other from attacks, N the Queen, the Queen can attack with in the same row or column or diagonal on the same piece.