It's really here.

Qiu Jinghuan looked at Li Ang who walked into the examination room and smacked his lips unhappily, and continued to lower his head to study the Luban lock in the shape of a wooden box.

The Luban lock is square in overall shape, with an external frame, made of pure wood, and has a wooden sword hilt on the top.

In the middle of the frame, there are eight concave and convex and winding wooden pillars.

These wooden columns are spliced ​​together through the mortise and tenon structure in the middle to form a whole.

In the centers of the four surfaces except the top and bottom, tiny square holes are left, which can move the wooden pillars up and down, left and right with the space margin of the holes.

In addition, the examiner also distributed paper and pen to the candidates.

It is also mentioned that the final exam results depend on the progress of untiing the wooden box. If you really can't solve it, you can destroy the wooden box just like during the re-examination.

As long as the corresponding results can be achieved, you can also pass the exam.

Finally, the examiner emphasized that paper and pen are just drawings, and speculating that the structure of the wooden box does not hide any mystery that can be taken advantage of.

The entire exam lasted for six hours.

At noon and evening, people from the Ministry of Rites will bring lunch and supper in, and the candidates will sit for dinner. They cannot leave the examination room, but they can take advantage of this time to rest and chat.

There is plenty of time, but the problem is...

How to solve it?

Li Ang reached out to pull the wooden strips and found that only two could be pulled at first.

After moving the wooden strips, space is naturally generated, allowing other wooden strips to move.

But if you take a few steps, you will be stuck and cannot take out any one. You must take a few steps back, return to your original position, and continue to change to other solutions.

One gives birth to two, two gives birth to four, four gives birth to eight.

There are hundreds of possibilities in the first few steps, and every step of deduction will lead to more changes.

"It is equivalent to a Luban lock with extremely complex structure."

Li Ang said silently: "The hilt of the sword itself is also a twisted and twisted wooden pillar. To remove the hilt of the sword means to untie the Luban lock.

And due to the interference of the wooden frame and the sword hilt, it is impossible to see the specific structure of each wooden pillar inside.

Only by relying on the faint light shining into the hole, as well as listening to sound, spatial imagination and reasoning ability,

Let’s consider the specific shapes of the eight wooden pillars and the hilt of the sword.”

Li Ang slowly exhaled a breath of turbid air and thought shockedly, "What's even more terrifying is that drawing eight wooden pillars and the shape of the hilt of the sword is just the beginning. You also need to reason about the specific solution based on it.

If there is any mistake in the deduction process, you have to go back and forth."

Is this really something that people can design?

Li Ang looked around and saw all the candidates rotating the wooden box.

Some people had a dull look, some had annoyed, and some people were specifically referring to the Ministry of War recommended students, who had already squatted on the ground silently and began to punch the wooden box one by one.

It’s just that the final exam in the school is even more difficult than the re-examination.

The material of the wooden box is also more tough than the test papers during the re-examination.

"It is not much easier to smash hard and smash than to solve it thoroughly,"

Li Ang said silently: "The examiner said that, 'The final exam results depend on the progress of untiing the wooden box',

In other words, the Academy did not expect anyone to fully untie the wooden box, it only needed to make a progress further than others at the end of the time limit.

And the specific method..."

The final exam in the academy will inevitably require spiritual talent.

Xi Yangyu's words flashed through Li Ang's mind.

Spiritual vein talent, spiritual vein...

He pressed his forehead with a serious expression, closed his eyes, and began to meditate and sense.

The spiritual energy of heaven and earth surged through the whole body along the spiritual veins, and finally reached the head, touching the ink-colored silk threads that were dormant there.

Unobstructed.

"call..."

Although he had tried several times on the way to Chang'an, at this moment, Li Ang was still tired and...lucky.

The body was filled with spiritual energy, and the scene in front of me seemed to become clear, and I could clearly feel the feeling of every hair and skin being blown by the breeze.

Are you feeling the Qi Realm?

Li Ang slowly opened his eyes and pressed his palm firmly on the wooden box.

The spiritual energy in the body naturally penetrated into the wood blocks. The seemingly smooth and smooth surface of the wood lit up with wisps of dim light, forming the texture of the wood itself.

And when the spiritual energy was stopped, the light that lit up along the lines slowly faded away.

"This is the tip for the final exam."

Li Ang made a quick thought and immediately picked up his pen to draw the wood grain pattern he had just seen on the paper.

The frame of the wooden box itself does not shine, only eight wooden pillars and the hilt of the sword will flash.

And the direction of their wood grain has some rules.

"Injecting spiritual energy can make the wooden box shine for a short time and illuminate the structure and changes in it,

And, if I guess correctly, the wood used in different boxes should be dug from the trunks of different whole trees.

Although in the initial test state, the eight wooden pillars and the wood grains on the hilt of the sword did not match each other,

But if the wood blocks are moved so that their wood grains fit each other, the wood blocks return to the form of complete wood,

Maybe it can reach half of the unzip of the wooden box, or even completely unzip the wooden box."

Li Ang was shocked and continued to input spiritual energy into the wooden box, copying and depicting it on paper.

There was no fence in the examination room. After Li Ang made the wooden box shine, He Fanshuang, who was sitting behind him, also successfully found a method.

The actions of the two were soon noticed by others and they followed suit.

The two academy teachers behind the examination room nodded slightly, looked at each other, and continued to taste the tea.

Lighting up the wooden box is just the first step, and there is still a long way to untie it.

—————

Time passes quickly.

The Haotian bell rang, and the academy teachers walked to the front of the examination room, reminded that lunch time was up, and took away the wooden boxes on the table of each candidate.

Like everyone else, Li Ang’s wooden box is still far from being untied.

He rubbed his face, and he hadn't had a rest for a quarter of an hour until yesterday.

"Qiu Da, what step have you solved?"

"At the beginning, what about you."

"Same. Where are you, Pei Silang?"

The noble teenagers whispered, and everyone in the examination room was approaching. Pei Jing was the fastest among them, and had already reached the 20th step.

And Li Ang...

At least judging from the shape of which wooden box was taken away, it was just starting out.

"Looking at his exhausted and pale face, he was almost dead, and he was late in the morning. Could it be that he knew that he had no hope, so he went to Pingkangfang for a night last night?"

"Ha, it's hard to say. I wonder if Xi Siye said that when he uses spiritual veins, it will cause harm to his body? The little spiritual energy he used just now may have reached its limit."

"Tsk, what a pity. By the way, if he really fainted in the exam room, someone would have carried him away, right?"

Li Ang listened to the whispering sounds in the corner and scratched his head helplessly, wanting to remind them that his face was pale and sleepy because of staying up late and anemia.

The noble teenagers did not chat for too long. When someone began to talk about their experiences in a low voice, everyone looked at the teachers behind the examination room - the two teachers closed their eyes and rested, as if they had not heard at all.

Could it be... during lunch time, can candidates really talk about progress?

Then wouldn’t the person who solved it first, can tell other people the secrets directly?

The candidates' hearts pounded and they started to whisper.

clatter.

The sound of chopsticks poking the porcelain plate sounded. Li Ang turned his head to look, and He Fanshuang held the chopsticks and his willow leaves frowned slightly.

She was the second candidate who thought of using spiritual energy to illuminate the wooden box. Perhaps because she consumed too much spiritual power, her face was also pale.

“…”

Li Ang thought for a while and said softly: "One, the front and upper left, set one. Move two."

He Fanshuang was slightly stunned, looked up at Li Ang, and after a long time, he said softly: "Two, the front is top right, set two. Move one left.

The lower left side is set, set five and move one out.”
To be continued...