Lei Tongren looked around, didn't ask anything more, and after going around the cave, he walked straight to the steps of the passage above, took out a pen and paper, and silently began to draw.

A few minutes later, he returned to Zhang Gong and handed over the drawn drawing.

Zhang Gong looked at the picture, smiled and said to Professor Chen: "What did I say, this kid is really destined for our industry!" ”

Professor Chen knew that it was impossible for Zhang Gong not to see the discovery drawn by Lei Tongren, it was just his means, so he asked knowingly: "How do you say this?" ”

"It can be seen from the diagram drawn by my colleagues that the placement of these stone figures is actually a kind of Qimen Dunjia array, to put it bluntly, it is a Luo Shu map, and the real use should be the eighteen on both sides."

"What does that mean?"

"These stone figures should be able to move, if I guess correctly, there are fixed tracks under the feet and within the layout range of these stone figures, it is very simple to confirm this, only clean the feet of the stone statues, see if there are any track grooves, with this discovery you can judge."

Under the command of Zhang Gong, the group took out small shovels and brushes from their backpacks, each found a target, and began to clean slowly. After ten minutes, the feet of the twenty-one stone statues were all cleaned up, the lower part of the feet of these stone statues is a base of 49 centimeters long and 38 centimeters wide, buried nearly 30 centimeters deep under the stones. The edges of these bases are all covered with irregular stone slabs, and after Professor Chen asked Chen Zhijun to take pictures, everyone started to open these stone slabs, and the track grooves that Zhang Gong said really appeared below. On the base of the three stone statues in the middle, there are only upward triangles, squares, and downward triangle symbols, and there are no hidden tracks except for the seemingly little space backwards, and these three should not be able to move.

Zhang Gong looked at the expected result, smiled and said to Professor Chen: "The guess just now has been verified, and now that there is an answer, what is the purpose of the appearance of this nine-palace diagram?" Once you've done that, you'll know the secrets! ”

"I think this nine-palace diagram is related to water, but I can't see what it is used for the time being."

Chen Zhijun was puzzled by what he heard, so he interjected and asked, "Then how do the stone statues here need to be moved?" What can happen after you move? ”

After Zhang Gong called Situ Fang, he said to him and Chen Zhijun: "Actually, this nine-palace diagram is the best, just remember the formula, one counts the bumps, the second counts the kun, the three shocks and the four Xun count the middle points, the fifth is the middle palace and the six dry is, seven to eight Gen and nine leave the door, according to this formula, these stone statues should be able to be moved correctly in place." ”

Situ Fang asked puzzledly: "Nine palace diagrams, then only nine stone statues need to be used, but there are twenty-one here, how to place them?" ”

"The distribution of stone statues here is nine on each side, at present, only these two sides can move the position, the middle three don't care, according to the formula, put the left and right sides well, the left and right sides, the position of the order of the replacement."

Situ Fang still didn't understand what Zhang Gong said, so he asked: "Professor, just say how to put it, we have the strength, we don't understand the gossip you said." ”

"Well, let's put it this way, this nine-house diagram is three times three of the nine grids, in these nine grids, respectively put one to nine numbers, so that the combination of numbers in the nine-palace chart, whether horizontally, vertically or obliquely, the three-digit sum answer is equal to fifteen, when solving this math problem, first fix the middle part, the most central can only be 5, and then slowly pinch it, then the answer can come out immediately, the middle is 3, 5, 7, the lower 8, 1, 6, the upper is 4, 9, 2, and then corresponding to the mantra I just said, after pushing these stone figures into position, the task is completed. ”

Situ Fang was explained in such detail by Zhang Gong and understood what was going on with this nine-palace diagram, but he still didn't understand it, so he said: "Oh, that means pushing the stone statue engraved with Kan to 1 and Kun to 2, is that so?" But the solution to this problem is not what you say, right? ”

There is only one answer to this question, the only possible thing is to change the order up and down and the order of left and right, have you seen "The Legend of the Condor Heroes"? I don't know if you've noticed, Huang Rong, the daughter of Huang Yaoshi, she cracked the Jiugong grid, and her mantra is, 'Wear nine shoes one, three on the left and seven on the right, two or four have shoulders, eight or six are feet, and five are in the center. Forget it, I'll draw you this picture so you don't get it wrong. ”

After speaking, Zhang Gong drew a map of the location distribution of the nine-palace diagram on the book, tore it off, and handed it over to Situ Fang for the next work.

Situ Fang looked at the sketch, walked to the middle of the stone statue on the left, and tried hard, trying to push the stone statue, but it was unsuccessful, and the stone statue only moved a little bit. After Situ Fang called two more people, the three of them worked together to finally push the stone statue, and slowly, the first stone statue moved into place.

Just eighteen stone statues took Situ Fang and a few of them half an hour. Zhang Gong checked the placement and confirmed that the positions were all in place and correct, and then said to Professor Chen: "Old Chen, take them all to the passage, the three stone statues in the middle are a true or false question, I'll try." ”

Professor Chen knew that the design of this kind of mechanism was full of uncertainty, so he said nervously: "In your opinion, what will be the result of this wrong choice?" ”

"If it's wrong, there should be no consequences, this place will be flooded at most, if it's right, haha, then you'll know."

"Flooded? Isn't the water level here already at a certain level? ”

"No, the depth of this pool is more than 40 meters, and there is no bottom, it seems that the level is stationary, I think it's not that simple, I just looked at the side, and found that there are traces of being flooded here, and the height is to the exit of the passage, so I judge that there should be something here that we don't know now."

"Then the detection will be decided?"

"It's useless, as long as you say that you have the Nine Palace Diagram, you either don't move forward, if you want to move forward, no matter what unknown risks are, you must challenge."

Professor Chen nodded helplessly and let everyone walk into the passage, but he stayed, standing beside Zhang Gong, looking at him calmly.

Zhang Gong and Professor Chen looked at each other like this, smiled, turned around and walked to the three stone statues in the middle.

He looked carefully at the symbols on the pedestals of the three statues: an upward triangle on the left, a square in the middle, and a downward triangle on the right. After reading it, he whispered in his mouth: "Treasure Mountain, the right is the first, the high and low peaks, occupy the middle sky, Tenglong, look at the Pingchuan, the secret clouds, there must be immortals, help its left, and be proud first." ”

After chanting, Zhang Gong walked to the stone statue in the middle, twisted to the right, and pushed the stone statue on the right side back with force.