马的遍历问题。在中国象棋棋盘上，对任一位置上放置的一个马，均能选择合适的路线，使得该棋子能够按象棋的规则不重复的走过棋盘上的每一个位置。-Traversal problem horses. In Chinese chess chessboard, for any one location to place a horse, able to choose the right line, making the chess pieces according to chess rules can not repeat the past chessboard for each location.