"This, 'exhausted children', teacher, what you said just now." Tan Xiaotian reminded a little unconfidently.

"You mean that no one has taught you that this condition is called a prosthetic eye, and that you have figured it out according to the basic rules?" Questioned by his own students, Yuan Lang not only did not mean to be angry, but gave people a sense of surprise.

"Uh, what is a 'prosthetic eye'?" Tan Xiaotian asked inexplicably-the eyes are fake, wouldn't he be blind?

"Heh, I was going to talk about it tomorrow, but I didn't expect you to find out first, okay, then let's talk about it now." Yuan Lang stroked his hair and smiled - this is not a profound problem, but there is a big difference between listening to other people's lectures and understanding them and relying on their own pondering and finding, the so-called 'those who are born to know, go up, learn and know, and play also', the chess pieces on the black and white sides of the chessboard still have six or seven breaths that have not been finished, that is to say, Tan Xiaotian foresaw the result when the two sides finished collecting their qi before the chess pieces fell on the chessboard, in the Go art book, this is the so-called' Calculation', of course, calculation is not a complicated and mysterious thing, people with normal intelligence will always consider what the consequences of their actions will be before doing anything, but some people think for a long time, and some think short-term, the problem is that Tan Xiaotian is just a five-year-old child, and today is the first time to contact Go, when the other children (and the three transfer adults) are still excited to take the opponent's chess pieces off the chessboard with a mouthful of breath, this child is already calculating the change of the chess game after six or seven moves, what kind of surprise is this？

"The so-called prosthetic eye is the situation that the two of you are playing now." Taking the chess shape on the chessboard as an example, Yuan Lang explained on the spot, "If the eye enclosed by a piece of chess finally needs to be filled in to avoid being removed by the opponent, such an eye is called a 'false eye', that is, this 'eye' is not real." Therefore, a 'false eye' is not an eye, and a chess with two false eyes is not a living chess. Yuan Lang said.

"Oh, I see. Learned another trick. ”

"Is this a prosthetic eye? I thought that having two eyes was a live chess. ”

“”

The classroom is so big, hearing that Yuan Lang has something new to teach, the adults and children who are playing against each other in the other seats take the initiative to come over and watch, and after Yuan Lang explains the concept of 'false eye' clearly, everyone suddenly realizes and sighs - if it weren't for Yuan Lang's explanation, let them ponder and comprehend on their own, I'm afraid they won't be able to figure it out in three or five days, right?

"Hehe, there is a very simple way to determine whether an eye is a real eye or a false eye." Hearing everyone's exclamation, Yuan Lang's interest also came, and he stretched out his hand to push the chess pieces on the chessboard aside, and rearranged a new chess shape.

A complete eye in the middle of the abdomen is a hollow square with three horizontal and three vertical, this square has four corners, when these four corners are occupied by the other party to more than two, this eye is a false eye, the situation on the corner or the side is slightly different, as long as the other party occupies a corner is a false eye, although the false eye does not have to be filled in immediately, but as the game progresses, the external qi of a piece of chess will eventually be tightened, and at that time in order to avoid being raised, this' The eye is still to be filled in by the opponent or oneself, and it is for this reason that a move with two false eyes is still a dead move. Yuan Lang put a few more chess patterns and explained in more detail.

When Yuan Lang was explaining, Tan Xiaotian was also listening without blinking, and when others were sighing and praising the new knowledge explained by Yuan Lang, he was holding his cheeks and staring at the chessboard as if he was thinking about something.

"Every day, are you in a daze? Is it that what Mr. Yuan said is too complicated to understand? Do you want me to tell you again? Seeing Tan Xiaotian's appearance in a daze, remembering that Tian Dayi told him to have a good relationship with this child to gain Qiu Ju's favor, Lin Lao Wu joked with a smile.

Hearing Lin Lao Wu's words, the people around him all laughed - who doesn't know that Lin Lao Wu is a rough man, he works hard and is a good hand, and it is difficult to compliment him in terms of eloquence.

"Hehe, Tiantian, is there anything else you don't understand?" Listening to Lin Lao Wu's words, Yuan Lang was also amused, but he couldn't let Lin Lao Wu do what he should do as a teacher, right? He asked Tan Xiaotian to prevent the student he liked the most from going home with questions.

"Well, Mr. Yuan, you just said that a chess piece with two real eyes is a live chess, and two false eyes or one true and one false is a dead chess?" After thinking about it, Tan Xiaotian asked very seriously.

"yes, yes, what's the doubt?" Yuan Lang asked strangely - didn't he remember everything he said, why did he still look puzzled?

"Yes, the prosthetic eye is not an eye, it just doesn't need to be filled in immediately, even your brother Qingyou understands it, why can't you figure it out?" Tian Dayi, who was next to him, also asked with a smile - it was rare that his fat son was smarter than Tan Xiaotian, and he was very happy.

"That is, the teacher said it so clearly, we all understood, why do you still ask? Did you get distracted when the teacher explained just now? Hehe, my eyes were so wide, I thought I was serious, but it turned out to be pretending. Xie Xinyuan, Yang Shu and a few college students who already had a small conflict with Tan Xiaotian sarcastically ridiculed.

"Be quiet, let every day finish speaking." Seeing that Tan Xiaotian obviously had a question to ask, and the ridicule and sarcasm of the people around him made the child a little timid, he spoke out to stop it, asking everyone not to artificially create pressure on Tan Xiaotian.

Yuan Lang spoke, and no one dared to resent, so they all quieted down for the time being.

"Every day, don't be afraid, just say it." Yuan Lang continued to encourage.

The people around him were quiet and with Yuan Lang's encouragement, Tan Xiaotian's courage that had just been suppressed was plucked up again.

"A move with two false eyes isn't necessarily a dead move, right?" Tan Xiaotian finally said the question in his heart.

"Uh", hearing this question, all the people were stunned, before this, none of them had thought about this problem, more importantly, Yuan Lang was the teacher who taught them to play chess, Yuan Lang's words were almost equivalent to the existence of a golden rule for these people, who dared to question it? Who is qualified to question?! Even dare to doubt what the teacher said, this little guy is too bold, right? Could it be that it is really a child's words, and it is precisely because of the child's simple mind that he dares to say anything? The problem is that there are so many children of about the same age in the same room, why don't those children ask?