1．　　搜索算法应尽可能独立于具体问题。亦即搜索算法程序既可用于迷宫问题，也可用于九宫重排问题、修道士野人问题等-1. Search algorithm should be as independent as possible on specific issues. Search algorithm which can be used to the maze procedure, can also be used JiuGongTu rearrangement, monks Savage problems