Wait for me, and watch me fight my way back to the reincarnation path

At this time, the Imperial Concubine's subordinates placed a round table in front of Qin Qiong, and brought a small box to the side and placed it on the table.

Wang came up and opened the box, taking out a few things: a rectangular box about 60 centimeters long and 10 centimeters wide, and a bunch of small things that looked a bit like nails.

"Please take a look, young lady. Do you recognize what these are?" Mr. Wang said to Qin Qiong even more respectfully.

Qin Qiong picked up the nail-like thing and found that it was well made.

There is a round head on the top with a number on it, and the bottom is not a nail, but a key handle. There are 8 in total, from 1 to 9, only missing 5.

The box was even more exquisite, with a swastika pattern all over the box, a two-dragon-playing-with-a-bead pattern in the middle, and many gemstones inlaid on it.

One side is flat, and the other side is a nine-square grid with holes all over it. Only a round nail with the number '5' on it is embedded in the middle square.

"It seems like... this seems to be a secret lock box. These are the password keys on the side, from one to nine. Put these numbers in. Maybe there needs to be a password to open it."

Qin Qiong was looking through the box while reciting.

"Then can you put these numbers up?" Yang San rushed to the table.

"This? This requires a hint. Is there anything else besides these?" Qin Qiong asked, looking up.

"Well... there was a letter coming with it, but it has nothing to do with this," Wang Changshi looked at Yang San and replied.

"Come together? How can there be no connection? Let me see it."

Qin Qiong fiddled with the cipher box as he spoke.

The box was well made and Qin Qiong became interested in it.

"It really doesn't matter, Mr. Wang, just tell me about it," the imperial concubine who was sitting there spoke.

Qin Qiong was stunned and thought to himself, "Oh no!" She had gone a little too far.

"Really? In fact, when the box came, these numbers were all on it. We also knew that this was a secret lock box, so we tried it..."

"As a result, the numbers fell down due to repeated wrong presses. Later, we realized that the real password had not yet arrived. But now, we can't restore it anyway."

Mr. Wang said to Qin Qiong with a somewhat embarrassed smile.

"To be honest, the prince came to Beijing this time to get the password to unlock the door. But now the most urgent task is to restore it, otherwise..."

"Not many people in Da Qi can recognize these numbers. I only know a little bit, and I don't know much about them. That day, I saw that you recognized the numbers on this pocket watch, so I wanted to ask you to see if you can help me restore them. This thing is of great importance, so please help me!"

"Ah, so..." Qin Qiong was a little...

"Miss, please give me a helping hand! I would like to thank you very much!" Mr. Wang said with a bow.

"No, no." Qin Qiong was so scared that he grabbed him. How could people in this era be so "polite"?

"Let me think, let me think..."

Qin Qiong has a hobby of solving puzzles, so he is a little curious about this little thing.

Besides, in order to have a better life in the future, one can only cling to the powerful and wealthy.

"Can you think about the original positions of these numbers? Think carefully, just one will do." She studied for a long time and turned to ask Mr. Wang.

"I was...but there is one thing I seem to remember, this position seems to be Jiu," said Mr. Wang, pointing above Wu.

"Didn't you try?"

"I tried it, and this one can go in, but if I make a mistake with the other one, it will fall out together, so I don't dare to try it again."

‘9’ 秦琼眯起了眼睛。想了一会。拿起9插到了5的上面，又把1插到了5的下面。刚刚好，都插进去。

Qin Qiong smiled. It was the ancient "Luo Shu Tu".

"Understood, this is a binary form. Just follow the table of the Bagua Luoshu diagram and put the numbers in."

Qin Qiong said, "The sum of up, down, left, and right is 15, that's right. Do you know the 'Luo Shu Tu'?"

Seeing that everyone was still confused, she had no choice but to explain again.

"Well... I know it, but..." Mr. Wang looked embarrassed.

"You don't know? I thought everyone here knew."

Qin Qiong was a little bit "that", it seemed that the knowledge he gained from being born in the later era was really useful.

"This kind of profound knowledge can only be understood by those who are hermits or those who specialize in it. We... just listen to it but don't delve into it. Shame on me!"

"Is that so? Then just calculate it for now. It's not too difficult anyway," Qin Qiong said with a smile.

"Yes, please help me! It is because of my fault that these numbers have fallen. Wang has committed a crime that deserves death. Now, if you can restore them, you will save me. Wang is begging you!"

Mr. Wang knelt down after he finished speaking. No one could stop him.

"You, don't do this..." Qin Qiong jumped to the side in a hurry.

She couldn't stand this kind of etiquette: "Okay, okay, I'll try, don't kneel first, let me try"

So, when everyone else accompanied the imperial concubine to the back to eat, Qin Qiong could only count in the side hall.

Mr. Wang personally brought her tea and snacks, ground the medicine for her, laid out the paper, smiled and said a few nice words, then left.

Qin Qiong was really angry thinking that everyone else had gone to eat and he was the only one busy here.

9 palaces into 15 is the basic table in this type of progression, and it is also the earliest algorithm model. Mr. Jin Yong also used this in his books before. So Qin Qiong vaguely remembered it.

This kind of formula-based stuff is easy to solve as long as you have clues.

So, Qin Qiong began to draw several 9-square grids on paper, and began to compare them one by one and fill in numbers.

She lowered her head and became more and more excited the more she calculated. Mathematics is actually very interesting.

It is both chaotic and extremely rule-abiding. It does not allow any mistakes yet gives you thousands of correct directions to move forward.

What is important is that you have a persevering spirit, a serious attitude, and some theoretical foundation.

It just so happened that Qin Qiong had played this game once before. Thinking of this, Qin Qiong almost laughed out loud.

However, she couldn't, because the little Loli was looking at her with admiration.

The look in the little Loli’s eyes at this moment is so healing!

She calculated for a while, then looked up and saw the little girl running to the inkstone. She must have realized that the ink was almost gone, so she wanted to help her grind some more. But she couldn't even pick up the ink stick. She looked aggrieved, with her mouth bent as if she was about to cry.

She laughed. She raised her hand and covered the ink stick and said, "Okay, no need. I've calculated it."

Hey! Why aren't my hands cold anymore?

Qin Qiong looked up quickly, only to see that it was the young prince Yang San standing in front of the table, looking sideways at Qin Qiong's hand.

Qin Qiong quickly pulled his hand back.

"Yang... Young Prince, why don't you go eat? What are you doing here?"

"I finished eating a long time ago. Is it okay for me to come and take a look?" the little prince said, tilting his neck.

This kid is really awkward.

However, Qin Qiong didn't want to argue with him anymore. This was the rich and powerful person she wanted to cling to in the future, so she had to be nice to this guy.

"Really? Is it delicious?"

"......" The young prince looked at her with a murderous look in his eyes.

Qin Qiong also felt that what he said was a bit stupid. He needed to practice the method of talking to the powerful!

"You figured it out?"

"It's almost done, let's try it now." Qin Qiong shook the result in his hand.

So the two men returned to the main hall and the box was carried over again.

Also coming together were the imperial concubine and Mr. Wang, and even the eldest and second masters came.

It seems that these people have been fooled by the Ji family's meal again.