On March 8, 2003, Wang successfully cleared the clearance in 3 minutes and 57 seconds and entered the Guinness World Record.

Jiu Lian Huan is an ancient traditional puzzle game in China. This ancient toy was very popular with people in the past. It contains nine identical rings and a "sword" to put on or take off nine rings. Many people also think that knowing this ring can train the brain and even represent a symbol of intelligence.

Structure: nine rings

Each ring is connected with a straight rod,

Every straight rod passes through the back ring except the last ring.

A long sword passes through nine rings and can be taken out or put on through complicated steps.

Name: China, "Nine Chains" of course.

In fact, nine chains are not necessarily nine chains, but also seven chains and eleven chains, among which nine chains are the most widely known. In the eyes of China people, nine is the most respected, and "nine" represents a kind of "majority". There is a saying that "the clever ring is difficult to solve, and the nine chains are even more difficult to solve." Nine chains represent a level that cannot be easily solved, and the difficulty has reached its peak.

The West is called "China Ring". It is considered to be one of the most mysterious toys invented by human beings.

Italy is called "Cardin Ring".

Venice is called the "Seal of King Solomon". Because it can be used as a lock without a key.

History: The Nine Rings originated from the ancient folk in China. One said it was invented by the Warring States and the other said it was invented by the Three Kingdoms. According to expert research, Jiulian has a history of more than 2,000 years.

China

Hui Shi, a famous scholar in the Warring States Period, once wrote the argument of "Jie Lianhuan".

It is said that during the Three Kingdoms period, Zhuge Liang often led troops to fight, which was invented to relieve his wife's loneliness.

It was popular in the Ming Dynasty and spread widely in the middle of the Ming Dynasty.

In the Qing Dynasty, everyone, from literati to peddlers and pawns, loved to play the "Nine-Chain".

There are some details about playing nine-ring in the boudoir in A Dream of Red Mansions.

the west

Before16th century, the name of nine-ring chain had spread to Europe.

1550 mathematical literature published in Paris clearly discussed this "China problem".

Cardin, a famous Italian mathematician, called it "China's Nine Rings" in his works.

1685, the British mathematician Varis gave a detailed mathematical explanation.

/kloc-In the 9th century, Gross gave it a very beautiful answer with binary numbers.

Solution:

You need to move the ring 34 1 time to complete it.

First and second rings:

You can pull it out or pull it in directly.

More than three rings:

If the last ring is the only one to wear, you can pull it to the tip of the sword, so that you can easily put it in or pull it out.

Benefits and uses:

Represents cleverness

Train the brain

Increase patience

Promote parent-child relationship

Stay, businessmen call the "Nine Chains" the "Stay-in Plan".

In addition to solving puzzles, Nine Rings also fully demonstrated the continuity of its game process. After solving the first ring, people can solve the second ring immediately, which arouses the idea of understanding the third ring and then go up until all the rings are solved. Although the solution procedure is very repetitive, the ring is put on and taken off constantly in the "sword", but the number of times to solve the next ring is doubled every time, which drives the constant change. This ring is difficult to understand. Skilled people take five or six minutes to solve, let alone ordinary people. Once the guests have played, they will never leave.

As a door lock

The French have long used nine rings instead of locks to prevent theft. The British first used it to guard against theft in farmhouses in the18th century.