Ye Xiao followed the two to a courtyard that occupied a large area, and it was either rich or expensive to have such a large courtyard in White Tiger City, and the identity of the old man once again aroused Ye Xiao's curiosity.

Chu Bai, the captain of the White Tiger City Guard, turned around and left after sending the old man home, but was stopped by Ye Xiao as soon as he went out.

"This adult, I don't know what the identity of the old man living in this courtyard is?" Ye Xiao asked politely with a smile on his face.

Chu Bai looked at Ye Xiao vigilantly, "Who are you?"

"In Xia Xiao Night, it was the students of the White Tiger Academy who were classmates with Chu Hongchen and Chu Gongzi. Ye Xiao moved out of Chu Hongchen at this moment, and the effect was immediate.

Na Chu Bai's attitude immediately became respectful, "It turned out to be a classmate and friend of the little boy, and the villain was disrespectful." It's no secret to say. Chu Bai didn't doubt Ye Xiao's identity, after all, pretending to be an acquaintance of Chu Hongchen to get a piece of information that was not a secret was not worth the loss at all, not to mention that he seemed to have heard the name Xiao Ye somewhere. "The old man in this courtyard is named Zhang Idiot Dao, he is a talented formation master, he was originally one of my guests in White Tiger City, but a year ago, I don't know what happened to him, the whole person became crazy, and he often spoke incoherently. Several city lords have also sought top doctors to treat him, but there is no sign of improvement. The Lord of the City considered that he had made a lot of contributions to the White Tiger City, so he gave him the courtyard here to recuperate. And I happen to be in charge of patrolling this area, so I'm in charge of taking care of him. Under normal circumstances, he is just messing around in the yard alone, and he doesn't run around, and today he ran out without knowing what was going on. However, after all, Zhang Lao was a master of the Liangyi Realm, and we were afraid that he would go crazy in White Tiger City and hurt others. ”

After hearing this, Ye Xiao roughly knew the situation of the old man, but he didn't expect that this crazy old man was still a formation master of the Liangyi Realm. After sending Chu Bai away, Ye Xiao still decided to visit this Zhang idiot, and then he knocked on the courtyard gate.

"Who, come in over the wall, I don't want to go out and open the door....." An old voice came from the courtyard.

Ye Xiao was stunned when he heard this, he was really not a normal person, he jumped over a few meters high wall, but the moment he crossed the high wall, he felt that the gravity suddenly increased several times, and the whole person accelerated and almost fell. Fortunately, he had extraordinary skills, quickly adapted to it, and stood up. But he saw that the sloppy old man he had seen before was looking at him not far away, smiling back and forth. A black line appeared on Ye Xiao's brows, he would not arrange this formation to change gravity at present, although the old man in front of him was crazy, he was indeed a real formation master.

"Senior, please withdraw the formation, I came to you this time to discuss something important. Ye Xiao said respectfully.

Zhang Idiot looked at Ye Xiao and thought for a long time, "Do I know you?

Ye Xiao replied: "In Xia Xiao Ye, I am a student of the White Tiger Academy, you don't know me, but I know you." ”

"White Tiger Academy, why isn't it the White Pig Academy, the White Cat Academy, yes, I'm crazy now, do you know me before I went crazy, or after I went crazy?" Zhang asked an inexplicable question.

"It's... The younger generation also got acquainted with the seniors today, and today I heard the seniors' high arguments on the street, and I came to ask for advice. Ye Xiao replied cautiously.

"What is a high theory, oh, yes, I found a high theory today, hahahaha, this world is unreasonable, is it unreasonable?"

"Well, what you always said is, I want to know what is unreasonable, how did you find out?" Ye Xiao continued to ask.

Zhang Idioao looked at Ye Xiao with a strange expression, "Do you believe my words?"

Ye Xiao nodded.

Zhang Dudao danced excitedly, "My way is not lonely! My way is not lonely! By the way, that kid from White Pig Academy, what are you doing here?"

Ye Xiao's head was big, "I'm here to consult you about your new theory." ”

Zhang Idiot Dao asked again: "Do you believe my words?"

Ye Xiao nodded again.

Zhang Dudao danced again, "My way is not lonely, my way is not lonely! Some people believe in me, some people believe in me." What are you here for, boy?"

Ye Xiao didn't know if the old man in front of him was crazy, but he was going crazy. "I believe in you, I believe in you, I believe in you. Ye Xiao answered the question.

The old man jumped up excitedly, "Boy, how do you know I like to hear this?"

"I" Ye Xiao forced himself to calm down, "How can the senior high arguments be understood by those ordinary people, and please tell the seniors how you found out." ”

Two eye slits appeared in Zhang Idiot's messy hair, and he looked at Ye Xiao with a smile, "Boy, you are very good, come with me." ”

Ye Xiao finally breathed a sigh of relief and followed Zhang Idiot into a big house.

The moment he entered the house, a foul smell came to his face, and the house was messily placed with various formation materials.

"That's where I discovered this secret by doing experiments, there is something wrong with this world, it's unreasonable, it's unreasonable!" Zhang Idiot shouted again.

"It's... Experiments here?" Ye Xiao glanced at the layout of the room, and all kinds of formation materials were stacked haphazardly, not at all like they had just done experiments. "What experiments did you do with what materials did you do before?"

Zhang thought for a long time, and showed an embarrassed smile, "That... I forgot. ”

"You... Have you forgotten?" the corners of Ye Xiao's mouth twitched, and he had been messing around with him for a long time before he got such an answer?

Zhang Idiot said with a look of grievance, "I really forgot, I forgot everything, how did I come here? How did I find out this secret, and then I went to the street?"

"Senior, think about it again, it's very important to me. Ye Xiao pleaded.

"Think about it, think about it," Zhang said as he walked around the room, suddenly remembering something, and then began to look for something in the messy pile of materials.

"Hey, found it, found ....." Zhang Idiot Dao found a chessboard with a length and width of two feet from a pile of miscellaneous items, the chessboard was pitch black, made of a special wood, and it was stained with all kinds of dirt.

"That's it, that's it, I play chess with me, and I find out when I play it. Zhang Idiot handed the chessboard to Ye Xiao.

Ye Xiao took the chessboard, first used spiritual power to remove the stains on it, only to find that this was not the chessboard of Go or other chess types that he knew, the lines on the chessboard were black and white, ten warp threads, and ten weft immortals, constituting a hundred points, and these twenty lines formed nine hundred and eighty-one grids, and the most central grid was a Tai Chi pattern. And at the point where the black line intersects with the white line, there is also a small Tai Chi pattern. Ye Xiao counted, and there were exactly fifty such points.

"Heaven one and earth two, heaven three and earth four, heaven five and earth six, heaven seven and earth eight, heaven nine and earth ten, the point where heaven and earth intersect is the number of one Yan, and the number of Great Yan is fifty, this chessboard is probably not simple. Ye Xiao looked at the chessboard in front of him and thought, and then he found that there were two words engraved on the edge of the chessboard, which were 'Extreme Dao'.

"Extreme? Why is the word so familiar? Ye Xiao fell into memories and suddenly remembered. "By the way, the information left to me by Nangong Xingdou's predecessors mentioned that his only disciple's name is Yuanji Dao, and he is still my senior brother, he used the combination of chess and formation to crash out of the world. Could this chessboard be Senior Brother Yuan's stuff?"

"Well? I didn't lie to you. Zhang Idiot stood aside and smiled happily.

"Senior, is there only a chessboard and no chess pieces here?" Ye Xiao asked curiously.

"There is, there is, how can there be. Zhang Dudao took out a handful of chess pieces made of black and white jade from the pile of debris, but Ye Xiao could see at a glance that this jade was ordinary jade, and there was nothing special about it.

"How did you come to your conclusion through this chessboard before?Can you repeat the process?" Ye Xiao held the chessboard and held the chess pieces without a clue.

"It's... I forgot, I forgot... Woo woo woo woo " Zhang said stupidly, looking at the chessboard, he suddenly cried.

"Senior, don't cry, no, I won't force you. Ye Xiao looked helpless, although the old man in front of him had a certain amount of reason, he was moody and incoherent.

"Oh, don't ask, don't cry, cry when you ask. Zhang nodded his head.

"......" Ye Xiao knew that he might not get any results today, and was about to leave.

"That's... Boy, this chessboard is for you, for you, and when you figure it out, you'll know that I didn't lie to you, you must believe me. Zhang said pleadingly.

"I believe you, I believe you, I don't know what kind of treasure this chessboard is, did my predecessor really give it to me?" Ye Xiao wondered.

"It's not a good baby, it's not a good baby, I have a problem with my brain, that's it, it's because of it. The old man suddenly remembered something, and looked at the chessboard in Ye Xiao's hand in fear, "Take it away, take it away, my head is going to explode." ”

Ye Xiao hurriedly put this weird chessboard into the acceptance ring, and at this time, Zhang Zhidao's expression returned to normal. "Formation, I'm going to study the formation. By the way, boy, who are you and why are you in my house, get out, get out, don't bother me!"

Ye Xiao was unceremoniously kicked out by Zhang Idiot, "Is this a crazy person...... Hey, this chessboard is not ordinary, if you have the opportunity to know the way to cure Senior Zhang in the future, you can help him. ”

This time, in addition to buying all the formation materials, he also gained a peculiar chessboard, which is very likely to be his cheap master, the only personal disciple of Nangong Xingdou, known as the ancestor of the formation, Yuan Jidao. "In that case, I'll call you the Extreme Chessboard in the future. Ye Xiao returned to Tingyulou to play with this thing, and had a whim.

"The Spirit Mother Dao Source can refine immortal weapons, I don't know what kind of treasure this chessboard is, I don't know if the Spirit Mother Dao Source can be refined?"

(The schematic diagram of the pole chessboard is placed in the post bar....)