骑士旅游（Knight tour）在十八世纪初倍受数学家与拼图迷的注意，它什么时候被提出已不可考，骑士的走法为西洋棋的走法，骑士可以由任一个位置出发，它要如何走完所有的位置？-Knight Tours (Knight tour) in the early eighteenth century mathematician and puzzle fans much attention when it was proposed not be traced, chess knight moves to the walk, the Knights can start from any position, it how do I finish all the positions?