It is derived from an ancient Indian legend puzzle game. Bo Lama exalted God in a temple stay three diamond rods, the first root circle set with 4 gold piece, one of the largest at the bottom, a more than a little rest, are stacked up. Temple monks tirelessly them one by one from the rods to move on to another rods, provisions can be used as an aid in the middle of a bar, but you can only move one, and large can not be placed Small above. Monks have exhausted their life energy can not complete the move of gold pieces. If you press the move rule to a set minimum number of moves to the other column, the available mathematical way to calculate the minimum number of moves to (2N-1) times. Wuhan Star Popular Science Technology Co., Ltd. Main products include: science exhibits, teaching equipment, laboratory boxes, Science and Technology Museum building, children's play equipment, laboratory construction, primary and secondary school general education equipment, science and technology museum exhibits, multimedia teaching equipment, such as vocational education, Warmly welcome all dealers or professional bodies to cooperate with us to jointly develop the market and contribute to the science and education.