Seeing this, everyone looked at each other in shock.

What on earth is this?

Soon, the ball was immediately sent to a secret room in the air-raid shelter under heavy guard. At the same time, scholars and experts from the Academy of Sciences also came here to look at the ball in front of them.

"Is this...just a round ball?"

"No, actually..."

The soldier responsible for guarding the ball answered with some confusion. Then he stretched out his hand and touched the ball lightly. Soon, he saw a map of the earth appearing on the surface of the originally empty ball. Not only that.

, the four colors of red, yellow, blue and green are used to indicate the territory of a country in the southeast, northwest and northwest respectively.

"What's this?"

Seeing this, the senior management couldn't help but be confused. Could it be that this is some kind of jigsaw puzzle given to them by aliens?

However, seeing this scene, some scientists' eyes suddenly lit up.

"This is the four-color conjecture! Sure enough, we guessed it right!"

"Four-color conjecture?"

"Yes."

Upon hearing the inquiry from the elder beside him, the scientist hurriedly explained to him.

"This was put forward by a British college student named Guidry. What he wanted to ask at the time was that any map that uses only four colors can make countries with common borders colored in different colors. Which one of them is

What is the principle? From a mathematical point of view, the plane is arbitrarily subdivided into non-overlapping areas. Each area can always be marked with one of the four numbers 1234 without causing adjacent areas to receive the same number.

.”

"This is really interesting."

After hearing this, the senior leaders were also quite curious. After all, they would not be exposed to this kind of cold knowledge. It sounded interesting, but...

"What does this have to do with this ball?"

"This is a test question. The other party obviously wants to use this method to confirm whether our civilization level reaches the level of talking to them. If we solve this puzzle, we can go one step further!"

"So, can we solve this problem?"

Although the higher-ups don't know much about the four-color conjecture, they also know that if this puzzle can be solved, it might be the first step to communicate with extraterrestrial civilizations!

"This... is very difficult. To be honest, so far, the four-color conjecture has not been fully solved. In addition, in the previous four-color conjecture, we chose to fill the area ourselves, but this time, the other party has designated the four colors of red, yellow, blue and green.

This is a basic standard point. We must complete the four-color conjecture on this basis, which requires the support of supercomputing..."

"No problem. From now on, all units across the country will do their best to cooperate with you in completing your mission! Just ask if you need anything, we only ask that you solve the problem in the shortest possible time!"

Compared with the excited scientists, the high-level politicians thought more. Perhaps for the scientists, this was just a test question. After passing the test, they would be qualified to communicate with higher civilizations.

But what happens if you fail the exam?

Will they be regarded as savage creatures with no sense of communication?

As a civilization that has continued the examination tradition for thousands of years, they know very well that "exams" are not just a good thing.

No, this should be considered a "palace examination" for them.

Just like the emperor's couplet "A group of geese are flying south", if you want to say "two roast ducks are flying north", you will definitely take them out to roast...

At the same time, in the battleship, Iona still maintained her duck-like posture, sitting on the table next to Fang Zheng.

"Commander, what's the point of doing this?"

Iona looked at Fang Zheng in confusion. All the information collected by the Blue Fleet had been completely stuffed into the ball. But what Iona didn't expect was that Fang Zheng actually encrypted the ball, and then

I just sent it over. In Iona's opinion, since it was to convey information, just send it over directly, why bother?

"To put it simply, it can be regarded as a kind of stimulation. It is better than doing nothing at all."

Fang Zheng shook his head. He did this in compliance with the civilized contact method of the Forerunners in Mass Effect. It also served as a wake-up call to his compatriots in this world. After all, this is just a dog food world. Fang Zheng left after finishing the brush.

But I’m not sure if aliens will appear in this world in the future. If Founder directly provides assistance and the other party directly accepts it, then he might suffer a loss next time.

Just in case, it's better to follow the rules, which will be better for both parties.

"Also, there is one more thing...Commander."

"Um?"

"Lafite discovered the light speed transmission information fluctuations connected to the solar system in the Delta Quadrant."

"oh?"

Hearing this, Fang Zheng raised his eyebrows.

"let me see."

"yes."

As Fang Zheng spoke, Iona waved her hand gently. Soon, the scene in front of her changed again. Then she saw in the infinite starry sky, a square that looked almost as big as a planet, similar to a Rubik's Cube.

The object is heading towards the solar system...

"Is this...?"

Seeing this, Fang's expression changed slightly.
Chapter completed!