What is China's ancient toy "Nine Rings"?

Nine-ring is a folk toy in China. Nine rings are made of metal wires, which are sleeved on transverse plates or various frames, and the ring handles penetrate. When playing, repeat the operation according to certain procedures, so that the nine rings can be untied or combined into one.

Nine-ring is a kind of intellectual toy that spreads among Shanxi people. It uses nine rings in a string and wins by unraveling them. According to the Records of Dan and Lead by Yang Shen in Ming Dynasty, the two intersecting rings were made of jade. "Two rings intersect into one, can be closed, can be solved into two, and can be merged into one." Later, instead of jade, copper or iron became toys for women and children. There are also nine serials in A Dream of Red Mansions in Qing Dynasty. Zhou Bangyan also left a famous sentence about the Nine Rings, "Clever Jie Lianhuan."

Nine-ring chain is very popular, with various forms and specifications. When making, nine small rings are made of metal wires, which are connected and sleeved on strip-shaped transverse plates or various frames. The handle of the frame is sword-shaped, wishful-shaped, butterfly-shaped, plum-blossom-shaped and so on, and each ring is connected with it by copper bars. When playing, all nine rings are connected to the copper ring according to law, or all of them are untied after putting on sleeves. Its solutions are diverse, separable and changeable. The winner needs 8/kloc-0 times to arrange nine connected rings in a row, and then it takes another time to untie all nine rings. In addition, it can also be set into flower baskets, hydrangeas, palace lanterns, etc.

At the same time, the nine-ring chain is also solved in order. It takes a long time to solve the nine chains, and it can also exercise people's patience. Moreover, the nine-ring chain can increase the number of rings as needed to improve the difficulty, but the increase of the number of rings will increase the steps of solving rings geometrically, and the method of solving rings has not changed in essence, so we usually see nine rings.

Disassembly principle of nine-ring chain

It takes 34 1 step to unlock the nine-ring * * *. As long as you go up and down the ring, even if it is one step, it is not sliding on the frame. I hope everyone can solve this problem through independent thinking. The expansion and nesting of nine chains are a pair of inverse processes.

The rings of the nine-ring chain restrict each other, and only the first ring can go up and down freely. If you want to get off/on the N-th ring, you must meet two conditions besides the first ring. 1.n- 1 ring on the rack; 2. None of the rings in front of the n-1ring are on the shelf. Playing nine chains is to try to meet the above two conditions. In essence, to untie the nine-ring chain, we should start from the back ring, and the front ring should be removed before the back ring can be removed. The front ring should be installed, not really removed.

If you want to get off the ninth ring, you must meet the following two conditions: the eighth ring is on the shelf; And the first ring to the seventh ring are not on the shelf. The former was satisfied in the initial state, and now the latter should be satisfied. According to this reasoning, seven rings must be removed, and it has been deduced that the first ring should be removed, not the second ring. One, the second ring is the solution of even number. After the second ring goes up and down, the first ring goes up and down, so in actual operation, the first ring and the second ring go up and down at the same time, which is two steps.

In any normal state, there are only two ways to go: an upper ring and a lower ring, and the other rings cannot move. There was a road just now, so you can't take it again, or it will be taken back. In this way, it will force the serial to the right path. But many people often go back because they are not familiar with it, and they can't solve the nine-ring chain. Think about solving the nine rings for the first time, practice the movements of the upper and lower three rings, and remember that there is a top, a bottom and a top. After proficiency, you will have a deeper understanding and you don't need to reason.

Specific disassembly example

The following are the specific steps to solve the first five rings of the nine-ring chain:

Step:1234&; 567 & amp； 8 9 10

Move: next, next, next, next, next, next, next, next, last, third.

Steps:1112&; 13 14 15 & amp； 16 17 18 1920 & amp； 2 1

Move: up, down, one, two, four up, one, two, one, three up, one, one, two.

Another disassembly method:

Is to divide the frame into nine rings, such as holding the handle of the frame in the left hand and holding the ring in the right hand. From right to left, the number is 1-9, the ring is inserted into the frame as "top" and taken out as "bottom".

Demolition method:

Down 1 down 3, up 1 down 1, 2 down 5, up 1, 2 down 1 up 3, up 1 down 1, 2 down 4, up/kloc. Up 1 down 1, 2 up 4, up 1, 2 down 1 down 3, up 1 down, 2 up 5, up 1, 2 down/kloc-. Up 1, 2 down 1 up 3, up 1 down 1, 2 up 4, up 1, 2 down 1 down 3, up 1 down/kloc-0. Up to 1, down to 1, 2 down to 9 to remove the first ring. You can remove the 8765432 1 ring according to the above method. The key is to use your brains and develop your intelligence.

Installation method:

Hold the handle of the frame with the right hand and the ring with the left hand, namely 1, 2, 1, 3, 1, 2, 4, 1, 2, 1, 3, 1, 2, 5.

The Nine Rings in A Dream of Red Mansions

The eighth time: it is slightly more revealing than Tongling Jinying, and it is half sour to explore Baochai and Daiyu.

At first, I said that Jia Mu was going to Ningfu to see a play, but this was just the beginning. Baoyu sent Grandmother Jia back, hoping to see the play.

"I remember that Xue Baochai was ill at home recently, and I didn't go to see him." -this is a foreshadowing, a treasure before.

When Jade and Daiyu were playing with the Nine Rings, they heard that Baochai was in poor health and ordered the maids to visit her. "I should come in person,

Just say I just came from school and caught a cold. I'll come and see for myself another day.