It's late at night.

Although Xiao Qiqi and the other little hairy girls were in high spirits, they couldn't resist the sleepiness when sleep hit, and they were sent back. Xiao Aiwei and the others, including Xiao Lali, were also persuaded by Fang Tian to go back.

The sky is big, and the sleep is the biggest.

Among the little guys, the boys who started to practice martial arts when they were older, such as Little Berg, Little Dick, Little Ogga, etc., still happily followed the adults and cast lots, and the adults didn't care.

Beside the campfire, dozens of brothers from the Maple Forest Mercenary Group were not tired at all.

Don't say that there is anything to stimulate them, but no, for these brave men and brave guys who go out on missions all year round, not sleeping for one night or two is as common as drinking water and eating.

Several circles have been drawn on the ground, and they are arranged in groups of 100 circles each.

Why are there so many groups?

It was halfway through the circle earlier, when a fool, who didn't know whether he was clever or stupid, slapped his thigh and cried out, "Oh, what if these cities are in different locations?"

What he called "the cities are not in the same place" is, in mathematical terms, a matter of permutations and combinations.

Around the campfire, some of the animals were full of interest, and some of them were frowning.

There are many people who think that this question of the younger brother is very simple at first, but when they think about it, their heads are about to explode. ――This is not an easy question at all!

More than ten miles away, in the bamboo forest in the mountains, on the edge of the bamboo forest.

Sharjah and Saler sat on either side of the stone table and chessboard, both placing their elemental senses on the campfire over there, watching the big men toss and turn around.

On the stone table in front of the two of them, there are non-formal chessboard lines, densely arranged with chess pieces of various colors.

There are gray, black, white, and red.

It's as simple as stacking these pieces, one person drops one piece, and then the other person drops another piece around the piece, just be careful and keep the color different.

The two of them prepared a total of ten colored chess pieces, but they were extremely simple to use, first using black, then red, and then white, and then they couldn't cope with it, so they added a gray chess piece to it. And when the four-color chess pieces were ready, well, the two of them used the four-color chess pieces to fall all the way to the hundredth piece.

One hundred, one hundred cities, four-colored chess pieces, scattered and arranged.

In between, the two tried many permutations.

For example, a hundred cities are arranged in a straight line, which is of course the simplest one, and only two colored chess pieces are needed.

And then it gradually complicates - one city on the edge of two cities, three cities, four cities, five cities・・・・・・

"My lord, as they say, if the location of these cities were to change, how many situations could there be?" Sharjah asked Sere.

"You are also a Chinese and French, and the gap between you and me is actually not that big. How many scenarios can you think of?" Thaler asked rhetorically.

Sharjah shook his head.

Even a mid-ranking mage wouldn't dare to try it. I deduced the arrangement in my mind just now, and I only got to more than a thousand kinds of ranks, and I wanted to vomit blood. And in those more than a thousand situations, in all possible situations, even "a single hair on the body of the nine cows (Fang Tianyu)" is not comparable.

"Can we conclude that we need these four-colored pieces?" asked Sayler again.

Sharjah still shook his head.

Yes, they've tried a lot of things, but there are so many possibilities......

There are so many that there is no way to try them all. ...,

Along the lines of this event, let's temporarily shift the time back to 123456789 days.

It's still the Eastern Continent, it's still the territory of the Flowing Wind Empire, and it's still a small island in the middle of the big lake.

"Where are you from?" "I came from nothing. ”

"Who are you?" "I am a person who stands on the ground and looks up at the sky. ”

"Where are you going?" "I want to go to heaven, but I have no way to reach it." ”

The middle-aged man walked around the island with his hands behind his back, slowly reciting these few words, especially the last one, "I want to go to the sky, but I have no way to reach the sky." He recited it over and over again.

"What do you think of this time?" After a long time, the middle-aged man raised his head and said softly into the void.

"The one that Long Aotian entered in his dream is also a secret realm, right?" said in a soft female voice.

"In one step, polar motion is very different from extreme static. The sea outside is full of huge waves, but the sea inside does not even have a single ripple, if no one controls it, what else can present such a situation except for the secret realm dividing heaven and earth?" said in a generous and peaceful man's voice.

"Wind boy, is that little doll in your family the same as this Long Aotian, who also entered the secret realm in a dream@音?"

The old man never knew that his casual remarks were as different from the facts.

Fang Tian did not enter the secret realm in a dream, but it was indeed in a dream that he received the inheritance of the gift of that Cunzài.

"I've thought about it, and I think it should be the same as we deduced last time, the pure yuan bloodline is used as the foundation to open up the inheritance of the divine bloodline. Could it be that the situation that came out of the bloodline inheritance table is that the consciousness has entered an illusion similar to the secret realm?" The middle-aged man surnamed Feng said, paused for a moment, and then asked, "Your Excellency Affhres, over there, is there a similar precedent in the past?"

"There is some conveyance of consciousness, but with the opening of the lineage, the situation is not the same. A majestic voice said.

"Okay, let's not focus on this, we'll always know about it in the future. I'm very interested in the question of a hundred cities. A calm man's voice said.

"This is easy to do, let's try it, won't we?" said the man surnamed Feng with a smile.

"Good idea!" The old man's voice was full of anger, "I'll be the lord of the city, Wind Boy, you will attack the city first." ”

The next moment, in the large lake outside the middle-aged man, a hundred cities appeared scattered on the surface of the lake. If Liufeng Zhe was here, he would be surprised that the location of these hundred cities was actually taken from the Liufeng Empire.

"Quack, these cities have now been occupied by me, Wind Boy, you come to attack the city!" said the old man in a very proud voice.

Next, cyan points of light began to bombard the cities on the surface of the lake that were condensed by red fire points.

Boom was tough.

"Brother Feng, little sister is here to help you. A soft female voice said.

Immediately, the cyan light spot was flourishing.

Where the cyan light was bombarded, the red light was defeated one after another.

Thirty-two cities changed hands in an instant. The Red City was replaced by the Green City. However, when it comes to this, Qingcheng can no longer be added, because adding any more will violate the rule of "adjacent different colors".

However, although Qingcheng cannot be increased, there are still many situations in Hongcheng that are connected with the same color.

"It's up to me this time, Brother Feng, you come to press me down. A calm man's voice said.

...,

The yellow dots of light began to merge silently into the red cities of the same color, and soon after, twenty more cities were cut down and changed colors.

"Let's let the little sister come. The woman's voice said.

A little bit of blue light fell from the sky, like rain, and fell on those red cities, and the red cities instantly became mottled.

Then, Seventeen sat in the Red City and was replaced by the Blue City.

"Looks like there's nothing wrong with me anymore?" said the majestic voice faintly.

The red, blue, yellow, and blue colors of the hundred cities are perfectly colored, and there is no one between two adjacent cities that are connected by the same color.

The siege certainly doesn't end here.

Then the empires of all sizes on the continent were moved to the lake.

Then one man defended the city, and the others attacked it.

After the real empire is moved, they are no longer bound by reality. All kinds of imaginary situations were brought out one by one. Of course, their ideas have their own mysteries - most of those cities are staggered, and most of them follow a single or compound elemental circle.

Taking this opportunity, the five of them also exchanged hands in a small way, and each showed their own knowledge.

The event ends after three days.

"It's been so cool in hundreds of years!" said the broken gong's voice, apparently from the mouth of some middle-spirited old man.

"It seems that even if there is not limited to a hundred, no matter how many cities there are, only four colors are needed?" said in a peaceful man's voice. Because later, when the various composite elemental circles were deployed, they were no longer limited to a hundred cities.

"Why four, not three or five?" the woman's voice said softly.

As soon as these words were asked, several people fell silent.

"Because there are only four elements in heaven and earth?" said in a calm man's voice after a moment.

"Then why is the Law of the Four Elements here?" asked the majestic voice.

As soon as these words came out, several people fell silent again.

A mysterious and inexplicable feeling arose in the hearts of several people almost at the same time.

Why is it that with these four colors, you can arbitrarily divide the world, so that any neighbor is different?

If it is not limited to the city, not limited to a hundred, and expands infinitely, this vast world, with the four elements in it, is it also occupying such several positions?

After infinite expansion, if it shrinks infinitely, does it mean that only holding a limited number of combinations of the four elements means holding the entire heaven and earth?

Then, independent of heaven and earth, division of heaven and earth, evolution of heaven and earth?

All of a sudden, several people actually thought of a word at the same time, a kind of storage zài.

"I want to go to heaven, but I have no way to reach the sky. In this question, is the supreme mystery the key to the stairs and the portal?

When I thought of this, even these people who were already at the level of the Holy Realm were a little fluctuating.

This is true of the Sanctuary, let alone beneath the Sanctuary.

"The secret record that is not the end is the waste. A path that does not go far is a misguided path. ”

In the Southern Continent, in the middle of a certain high mountain and snow peak, an old man muttered these words, and after a long time, he looked up to the sky and laughed desolately, and then, he walked down the mountain without any care, leaving the place where he had been closed for decades.

"Teacher, please forgive me for being disrespectful. You think so, so you're just the Great Magician, not the higher. I want to take a different path than you. ”

In the Eastern Continent, in a quaint courtyard, an old man left his home with his hands behind his back and headed in a certain direction in the Southern Continent as if he were taking an ordinary walk.

Western Continent ......

North Continent ......

Central Continent ......

It's really a dragon and a snake・・・・・・