After Shang Yu returned, Lian Dazhu and Xiao Ying'er, who originally wanted to travel around Dayu, changed their itinerary and stayed in the academy temporarily, and every evening Shang Yu would take out an hour to teach Xiao Ying'er the method of using natural energy, but the two were different after all, Shang Yu could only tell his own exercise methods and experience, and then put a piece of "Showing Energy Jade" that could detect the fluctuations of the surrounding heavenly energy on one side, and Shang Yu and Lian Dazhu played against Xiao Ying'er respectively, as for how far they could practice, it completely depended on Xiao Ying'er's understanding.

Fortunately, Shang Yu's method is indeed effective, but in three days, when Xiao Ying'er has been able to play the game, the shower can change from ever-bright to flickering, although it is still far from the point where Shang Yu stole all the chess pieces in the box and showed that the nengyu did not move at all, but it has already touched the door, and the next step is just a long time of grinding water.

And Shang Yu himself, on the fourth day of returning to Shushui Academy, actually changed his usual laziness and began to officially open books for the students of the academy, and at the same time opened two elective courses, one for arithmetic and the other for Go.

Many students in the academy are naturally very interested in this mysterious gentleman, Shang Yu's arithmetic class on the first day is almost the whole academy to listen to the lecture, only forty seats in the classroom forced more than 100 people to squeeze in, the window is also surrounded by water, among which there are even many other gentlemen in the academy who have not even seen this colleague in the past two months, not to listen to the class, but to come to see the rare.

Everyone came to see the deity, and it was inevitable to be disappointed when they saw the deity, and it turned out that the rumor defeated the new "first person under the Apocalypse of Dayu" enshrined by Chengtian Sifan, the one who knew astronomy, geography, extraordinary, and transcendent Mr. Shang Yu was just a young man with a very ordinary appearance and temperament.

When Shang Yu opened his mouth to lecture, those fresh gentlemen and students yawned and shook their heads, this gentleman's teaching was really too boring.

Shang Yu didn't care what other people thought, he just talked unhurriedly.

Dayu can create such a strange weapon as the wind and rain tower, and although the level of arithmetic is not as high as Shang Yu's hometown, it is not low. It's just that its system is very different from what Shang Yu learned in the past, and often in a book of arithmetic used in teaching, it can include several branches such as number operation, overall topology, algebraic geometry, and even partial differential.

Shang Yu simply put aside the books, starting from the previous high school level, only teaching algebra, according to his prediction, in the next few months, from the binary equation system to the transformation application of matrices, this subject from elementary mathematics to the threshold of advanced mathematics just ended.

As a result, the students in the audience were naturally confused and drowsy.

He spoke in simple terms, in fact, it is not difficult, but his current understanding of Dayu is still limited, one can not quote the classics, two can not casually take physical examples, the course sounds natural and boring.

So in just two quarters of an hour, not only did the crowd of onlookers disperse cleanly, but the remaining twenty or so students also slept eight or nine, but the remaining dozen or so students who really had a heart for this listened attentively and were full of interest.

In this way, when the afternoon chess class started, the crowd of onlookers was less than half, and more students in the academy who were really interested in this matter and even wanted to participate in the Yuandu Chess Club on the winter solstice this year.

I don't know who is talking, and spread the news that Shang Yu won the Shenxiao Empire's chess to be ordered to be the eighth section of Dazhu, so when Shang Yu arrived at the chess room, he saw forty or fifty students inside, and his eyes looking at him were half admiration and awe, and half were not angry and provocative.

According to Shang Yu's thoughts, this course is easier to teach than arithmetic, each class explains a change in the formula, puts two residual scores, and then the students go to the actual battle by themselves. As long as there is a slight delay, a set of Chinese rhedrists will continue to talk about the graduation of this class of students from the academy.

Therefore, Shang Yu, who had not made any preparations, was still a little stunned when he saw a student salute and walked straight away to him.

"Sir, the student is not talented, I would like to ask Mr. for advice. ”

The student obviously had a lot of expectations, and he looked at Shang Yu with a determined gaze, while the rest of the students didn't have any eagerness or other expressions, and they all looked at the podium expectantly.

"Oh?" Shang Yu flipped through the roster, "What's your name?"

"Mr. Hui, student Min Wencai. The young people seemed to be very proud of the fact that they were in front of everyone to report their names, and although Min Wencai bowed, he spoke in a loud and vibrating voice.

"It turns out that the Go genius that Dean Qin said is you. Shang Yu smiled slightly, but remembered that Qin Yi had mentioned this.

Min Wencai was born in the Min family of Tingzhou, the probability of the emergence of Chengtian in this lineage is extremely high, Min Wencai's ancestors are all officials in the court, his father Chengtian is fifty into one, and he is appointed as the ceremonial division of the Ministry of Rites, and his brother Chengtian is fifty into eight, and now he is used in the Muyuan Army.

And the sky is not beautiful, Min Wencai is forty percent of the sky, not into the heavenly selection is not rewarded, the family originally instructed him to learn literature, but unexpectedly this son has been talented in chess since childhood, the Min family invited a famous teacher to teach, his twelve years old in the source of the capital set the first paragraph, after three years in the Shushui Academy, chess strength is more and more good, now in addition to the dean Qin Yi, the academy other chess class of the gentleman has no one to beat him.

"The dean is falsely praised, and the students dare not be. Min Wencai said, "In the future, I will ask Mr. for more benefits." ”

Shang Yu looked around the chess room and said with a smile: "It's okay, if the class starts today, I will play a game with you." ”

Some students diligently set up the chessboard pieces, and everyone was excited, half because there was excitement to see, and half because the master played for several hours, and after this game of chess, there was no need to go to class.

Min Wencai consciously took the black chess, and he was naturally arrogant if he didn't ask for a handicap, but if he didn't teach Shang Yu to let him first, he would be a little disrespectful to the teacher. In a famous family, etiquette is naturally impeccable.

Shang Yu played chess with him with admiration, and then won the game in half an hour.

The students were in an uproar, half of them were surprised that Min Wencai had lost so badly, and the other half was also sorry that the game ended so quickly, and the desire not to go to class was naturally disappointed.

Min Wencai looked at the chessboard in a daze, with complex emotions such as confusion, longing, unwillingness, self-denial and then affirmation, but in the end, they all turned into high-spirited and firm.

After a few breaths, he got up and saluted Shang Yu respectfully to his disciple: "Mr. is superb in chess, and the student is obedient." ”

This kid regards this winter's Yuandu Chess Club as a glorious lintel of the Fish Leaping Dragon Gate, and no matter what the future holds, at least at this time, this kid is determined to work the chess path.

Shang Yu smiled slightly, and had a new idea for this course in his heart.

Patting Min Wencai on the shoulder, Shang Yu asked, "In this game of chess, do you understand where you started to lose?"

When the teacher asks like this, if he is a sycophant, the answer will naturally be: "Mr. is not missing, the student lost from the beginning, and the student should not challenge Mr. with his own strength." ”

But Min Wencai lowered his head and thought for a while, and then said: "The student thinks that Mr. Seventy-eight hands are broken, and students should not be greedy for merit and get rid of the first. ”

"Then come and see. ”

Shang Yu flicked his sleeves, and suddenly half of the chess pieces on the board were missing, and the chess game suddenly returned to the seventy-eight white chess moves, but the students were surprised by Mr.'s natural ability, but they really couldn't remember what was going on in this chess game, only Min Wencai's eyes lit up, and he clearly remembered that this chess game and Fang Cai were actually a good move.

"Ladies and gentlemen," Shang Yu raised his hand to suppress the noise, and said in a clear voice, "In the first lesson of today, I want to play a game with you, so I ask you to review the endgame between me and Min, which can be regarded as a small challenge." ”

All the students looked at Shang Yu, this kind of teaching method is also new, but they don't know what to do with the word challenge.

Fang Cai Min believes that this chess is a change in this move, and the black chess will not fail miserably in the middle game, so now Min will be in charge of white, and you will be in charge of black, and you will try this game. ”

Shang Yu saw that everyone's eyes were attracted, his eyes swept over the students one by one, and continued: "I think that Min's chess strength should be the highest among all the students, so if anyone can defeat less than Min, it will be considered a successful challenge. ”

Everyone understood this meaning, and immediately became excited, even though they may not have the intention to specialize in chess, but they chose to come to this class, and they had their own competitive heart in their hearts. But the rule of Mr. Today, is to let Min Wencai hold white, everyone holds the black chess that has only failed miserably, as long as the defeat is less than the square, it is considered a victory, but everyone has seen that the black chess is already a defeat can not be more miserable, at this time it is a review, there is a lot of room for rethinking, and the white Min Wencai is far less than the white gentleman, if only the defeat is less, everyone naturally thinks that everyone has a chance.

Shang Yu said that, and said to Min Wencai: "Classmate Min, do you think this is good?"

Min Wencai naturally knew that this rule was unfair to him, but all the classmates were already eager to try, especially the two who were closest to him in terms of chess strength and lost to him the most, and they were even more dazzling, and they had already begun to study the changes in this chess game at this time.

As soon as the young man saw this, his competitive heart suddenly rose, how could I, Min Wencai, let them look down on him!

Min Wencai said in a loud voice: "Sir, I think this is very good!"

The young man is really high-spirited.

Shang Yu smiled happily, but said: "Classmate Min has already said that he will teach you a black chess move, and in order to show fairness, I should also inform Min's white chess move." ”

I saw him walk to the front of the case with a pen, cover it with his hand, write a note that no one knows the content, and hand it to Min Wencai.

"This ......" Min Wencai was about to be a lone hero and fight against the heroes, but when he saw Shang Yu handing over the "tricks", he suddenly felt that he couldn't hold it on his face, and he wanted to refuse, but he saw Shang Yu's smiling face.

Yes, sir, this is teaching me! Min Wencai, Min Wencai, are you here to learn chess or are you here to be vindictive?

"Thank you, sir!"

Min Wencai was relieved, took it with both hands, and then sat down in front of the chessboard again with a flick of his robe sleeves, his eyes swept over the group of classmates: "Which classmate will teach first?"