It's a number game. It tests your memory and reaction. He has a total of 15 numbers, and we have to scramble these 15 numbers before putting them back together. This is a very masculine world, but we insist on it every day in order to move our brains. Can enhance our memory.

　　It's a math game.

　　The toy "Huarong Road" consists of a chessboard and 10 pieces. The 10 pieces include Cao Cao and Liu Bei's Five Tiger Generals Guan Yu, Zhang Fei, Zhao Yun, Ma Chao, Huang Zhong and four pawns. Its gameplay is to move each chess piece and let Cao Cao walk out of the gap on the chessboard with as few steps as possible.

　　Yes, Huarong Road is a well-known intellectual game at home and abroad, which originated from the story of Guan Yunchang's interpretation of Cao Cao in The Romance of the Three Kingdoms. Although it was invented by China, the most accurate solution was worked out by Americans with computers. At the same time, it also let us know the existence of the "Three Kingdoms" when we were children.

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　　Huarong Road is an ancient folk puzzle game in China. It is called "Three Incredibles in the Intelligence Game Industry" by foreign intelligence experts together with Rubik's Cube and Independent Diamonds because of its changeable and inexhaustible features. It is also synonymous with traditional educational toys in China, such as jigsaw puzzle and nine-ring puzzle, called "China's puzzle". According to the annotation of Zi Zhi Tong Jian, "You can get to Huarong from this road". Huarong Road was originally a place name in ancient China. According to legend, Cao Cao once defeated this place. Because Huarong Road was a swamp at that time, Cao Cao's army had to mow grass to fill the land, and many soldiers were buried alive even worse, which was very tragic.

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　　Apart from its history, there are at least the following questions in studying Huarong Road Games: 1. How many kinds of openings are there; 2, judging that there is a solution; 3. Give the optimal solution; 4, computer solution. Therefore, Huarong Road is a mathematical game, which can exercise people's thinking and make them more active.