Lin Yanyan came to Shuntian Mansion and happened to encounter Guan Sheng and was about to go out.

"Lin...Mr. Zhen, Lord Xiao is asking his subordinates to invite you."

"Where are others?"

“In the duty room.”

Xiao Qian was stunning at the file, and his index finger hit the desktop one by one.

"Are you looking for me?" Lin Yanyan came in.

Xiao Qian's eyes were a little surprised: "Why did you come so quickly?"

Guan Sheng seems to have just left.

"Oh, I happened to have something to look for you, and I met Guan Sheng at the yamen." Lin Yanyan found a chair and sat down.

Xiao Qian sneered lightly and said to himself: "Is this considered a sympathy?"

Lin Yanyan was about to pour himself a cup of tea, but when he heard this, his hand slid and the teacup knocked down.

Xiao Qian smiled bitterly: He said so quietly that she could still hear it.

Xiao Qian walked over, took the teacup from her hand, and poured her a glass of water.

Lin Yanyan coughed twice, just pretending that he hadn't heard the sentence just now: "You talk first, what's the matter with me."

Xiao Qian said: "Qiu Rong confessed that the poison and the medicine were bought from a man who set up a street stall in front of the Chenghuang Temple to sell dog skin plaster. Yesterday it was a market. I went to look for it, but according to the memories of the old man who has been setting up a stall for dough men, last month, there was indeed a man with a black mole under his left face and bought bone skin plaster at the street stall. He remembered that it was because the man occupied his place, and the two had a fight, and they never saw the man again."

"So yesterday I went to ask Qiurong again. Qiurong said that she was visiting the City God Temple with Feng Yichen, but it ended up in disgrace. The reason was that a small vendor selling jewelry said... The price was the same as the last time the butterfly jade hairpin. Qiurong saw a butterfly jade hairpin in Bihan, so he questioned Feng Yichen. Feng Yichen admitted it and left angrily. Qiurong was angry, but the man who bought the dog skin plaster recommended poison to her, saying that the mouse died after licking it. She hated Bihan and bought it."

Lin Yanyan pondered: "If you say this, it is likely that Qiurong has entered a carefully set up situation by someone since he visited the City God Temple."

"Yes, I think so too, but what is the purpose of this person killing someone with a knife? Why did Bihan have to die? So, I checked Bihan's life experience again. The mother Qi of Liujing Pavilion said that Bihan was the daughter of the criminal, Bihan's surname was Zhang, and was from the capital. I went to check the files of the Ministry of Justice and searched all the criminals with Zhang's surname. "

"Have you found it?" Lin Yanyan asked anxiously.

Xiao Qian curled the corners of his lips and smiled secretly.

If he couldn't find it, how could he have the nerve to invite her?

"Zhang Boqian, former director of the Qing dynasty of Guangdong and Guangxi Ministry of Revenue, was sentenced to jail four years ago because he was reported to be corrupt. On the third day of his imprisonment, he committed suicide by hanging his beam in prison. Zhang Boqian had only one daughter, Zhang Biru. He was old and he had a match with Zhang Bihan. Zhang Boqian liked to play chess and was skilled in chess. My father once played chess with him."

Lin Yanyan frowned: "I committed suicide again, and it was a bit strange to die."

"Yes, only dead people are the safest."

"It's not the case. Maybe Zhang Boqian has a backup plan." Lin Yanyan took out the copied articles and maps.

"This is what I discovered from the chessboard. A travel notes and a map are written about Woniu Mountain and a painting is also drawn. Look, can you see the mystery in it?"

Xiao Qian was surprised: "It's really a mystery, your intuition is quite scary."

"I was really helpless, so I asked Fenghua to remove the chessboard, and then I discovered it."

Xiao Qian smiled, picked up the article and looked at the map again, and the more he looked, his brows became tighter: "This is an ordinary travel notation, and there are no marks on the map."

"There must be a problem. If you think that Bihan is studying chess every day, maybe he is also meditating the secrets. If it is so easy to discover, this thing will have already fallen into the hands of others. You can take a closer look."

Xiao Qian thought for a while: "Do you still remember the endgame that Bihan put on when she died?"

Lin Yanyan nodded: "Remember!"

Xiao Qian put away the article and map: "Let's go, let's go to Lord Ji."

When Lord Ji heard Xiao Qian say that he wanted to borrow chessboards and chess pieces, he asked someone to take them.

"Yan Yan, put the chess game out."

Lin Yanyan recalled and fiddled with the chess pieces, and said for a while: "It's ready."

But, is this useful?

Xiao Qian said: "You see, there are 361 intersections in Go, and this article only has 361 words."

Lin Yanyan's eyes lit up, OK, Xiao Qian's head is so useful.

Lord Ji was also excited and picked up his pen to draw a chessboard, filling in these 361 words.

Lin Yanyan closed his eyes, used the three hundred and sixty-one words as the intersection on the chessboard, and then corresponded to the endgame.

Take out all the words where the blackspots are located, and the words and sentences are formed are messy.

I took out all the words where Baizi was, but it was still wrong.

No, no, no, no...

If Zhang Boqian hides information in articles and chess games, it must be concise and concise.

That map... doesn't seem to be of use!

Xiao Qian was also thinking about what secrets are hidden here? What method can be used to crack it? He believed that the general direction was definitely right, but the key point had not been found yet.

Lin Yanyan's mind flashed: "Xiao Qian, do you understand Go?"

"I understand a little bit." Xiao Qian said modestly.

"You point out the word "seal" of all the black spies."

Xiao Qian pointed out a few black pieces on the chessboard as he spoke.

Lin Yanyan closed his eyes and took out the words corresponding to the black spots. It was still wrong.

"I want Bai Zi's word "风" to write."

Xiao Qian lit a few more white pieces.

This time, Lin Yanyan smiled: "I've unlocked it."

Master Ji's pen was beaten, was there any mistake? He had only drawn half of his chessboard, and Lin Yanyan solved the mystery?

Xiao Qian is also incredible.

"What is it?" the two of them spoke in unison.

Lin Yanyan paused in words: "Ya, linger, happy."

Xiao Qian and Lord Ji looked at each other and said together: "The plaque of the Ministry of Revenue?"

Lord Ji sighed: "Zhang Boqian is also a talented person. Who could have thought of that place?"

Xiao Qian nodded in agreement, and he would never have thought of death!

"It seems that I have to go and have a cup of tea with Brother Jiu." Brother Jiu is now in the Ministry of Revenue Baochao Tutorial.

While Lin Yanyan breathed a sigh of relief, he felt deeply regretful for Miss Zhang Biru. Zhang Biru was afraid that she had been studying this chess game for four years, but she never understood the secrets. The map was a cover.

However, it was a pity that Zhang Biru didn't notice it, otherwise she might have been killed long ago and she would not have been able to find out about it.

It is a coincidence that Zhang Bihan left a trick of "Feng" before his death, which not only reflected Feng Yichen, but also left clues to uncover the mystery of the chessboard.

Maybe there is God’s will in the dark! Miss Zhang, please go with peace of mind. If your father does have grievances, we will avenge you.
Chapter completed!