B said: "When I arrived at his house, I took the public glass kettle to the toilet as usual to get raw water, and after C finished washing the cup, I took a drink, and after that I kept playing chess with C, and then somehow fell asleep. By the way, D doesn't seem to drink raw water. ”

C said: "I washed the cups, and it's normal to have my fingerprints, but the cups are all the same, and everyone takes them at will." After B drank the glass of water, I played a game with B, and I also drank half a cup halfway through, and went to the toilet to take a pee, and when I came back, I found that B was asleep, and then I chatted with D, and I didn't know anything about it, and it was D who woke me up in the morning.

D said: "I don't like to drink raw water, and the communal glass kettle is only big enough for 3 cups, so I bring my own water to drink every time."

I and A both drank water and played chess together, but he seemed to be in a bad spirit, and fell asleep after a while, and then I went to see BC play chess, and C went to the toilet and came back, and B fell asleep, and I talked to C for a while, and C also fell asleep, and when I saw that everyone was asleep, I felt bored and lay down, and finally fell asleep in a daze.

When I woke up at 7 o'clock in the morning, I found a dead man, so I immediately called C up, but B couldn't wake up, and I thought he was dead too...... Eventually, I called the police. ”

Sou!

At this point, the picture is restored to darkness, and the light is presented in front of Chen Cong in a line of subtitles.

Answer: Who is the murderer? How did he kill A? (Note that there is only one murderer)"

……

"Smack!"

With a soft sound, the lights in the classroom turned on, everyone regained their vision, and everyone's eyes focused on Chen Cong, while Moss took out a clock and pressed the chronograph without saying a word.

Five minutes, Chen Cong only has five minutes to reason about this case!

All the Nether members present also thought about it, and many of them frowned, obviously feeling the difficulty of this reasoning question, and at the same time thinking that Chen Cong could not solve it.

Five minutes, too short, simply not enough!

But the corners of Chen Cong's mouth raised, turned to look at Moss, and said with a light smile: "Report to the instructor, I have an answer." ”

As soon as the words came out, the Netherworld members present were shocked, and even the white-haired Morse was slightly stunned.

From the end of the video to Chen Cong's opening, the stopwatch has only passed for less than ten seconds, how is this possible?

"Are you sure you have to answer? Don't think about it anymore? Morse pressed the stopwatch to pause and asked lightly.

"No need, the murderer is B." Chen Cong shook his head and said with a light smile.

When Morse heard the answer, the expression on his face did not change, but a strange look flashed in his eyes.

"First of all, there is the question of water, B drank the first glass of water, and the water in the kettle was only enough for 3 cups, but in the end he left half a glass of water in the cup, and the concentration of sleeping pills was different from other people's, so it can be almost deduced here that B did not ingest sleeping pills when he drank water for the first time." Chen Congyun explained lightly.

"What about the evidence?" A Nether member spoke, disagreeing.

Chen Cong smiled: "The evidence is about the efficacy of the drug, since the cup B drank was of higher concentration, and he drank the whole cup first, he should have collapsed earlier than A, but in D's confession, A fell earlier than B, so this is enough to prove that the first cup of water that B drank at that time did not have sleeping pills." ”

Speaking of this, he deliberately paused, and after seeing that no one asked questions, he continued:

"Then according to the method in logical reasoning, we can deduce the whole process of committing the crime, B poured water for himself, and then poured sleeping pills into the glass kettle, and drank his own cup of water without sleeping pills. Then A and C drank half a glass each. Later, A fainted after the effect of the drug, B pretended to be faint and waited for the opportunity, and C only drank water after going to the toilet, so the effect of the drug was slow, and he collapsed after chatting with D.

Because this is an extremely simple room, without any entertainment facilities, D will fall asleep in boredom, note, A died at 3 o'clock in the morning, people with normal schedules and rest will not stay up that late at all, D bored sleep belongs to the normal category.

Therefore, after D fell asleep, B waited until three o'clock, got up and strangled A to death, and went to the toilet to fetch water again, put in sleeping pills and drank it, because of the effect of the drug, D could not wake B up the next day. ”

After speaking, Chen Cong had also finished reasoning, and looked at Moss with a faint smile on his face.

Morse looked at him silently, and finally nodded slightly, which meant that Chen Cong's reasoning was correct.

But he didn't speak, but a Nether member suddenly raised his hand, stood up and said, "But this at most shows that B is suspected of serious Dà, how do you clear the suspicion of C and D?" Furthermore, how do you know that there will be no falsehood in the confessions of the three of them? ”

Chen Cong touched the tip of his nose and said with a smile: "Let's answer your second question first, since it was suggested that there was only one murderer in the end, it means that it is impossible for Zài to join forces to commit the crime in this case, and the three BCD were together when they recorded their confessions, and they could hear what they said to each other, but no one objected, indicating that what everyone said was true." ”

"As for the suspicion of washing C and D, it is actually very simple, C has no time to commit the crime, he can only apply medicine to the cup when he washes the cup, but the cup is taken at random, how can C ensure that he will not get the cup without sleeping pills? Moreover, B's coma time and efficacy are flawed, which is completely contradictory to the drug in the cup. ”

"If D committed the crime, then B and C don't need to lie, but C has already said that B drank all the water in the cup, but in the end, the police found that there was still half a glass of water in the cup of B at the scene, and there was a contradiction in Zài, so D's suspicion was basically ruled out."

After Chen Cong's analysis, everyone was silent, irrefutable.

Morse chuckled lightly and said: "The reasoning is very good, this question was originally intended to test your thinking reaction, and it does not need to be conclusive, you can reason out B and explain the modus operandi, in fact, it is already reasonable, congratulations, you are the smartest student I have met so far." ”

"Thank you, instructor!" Chen Cong bowed and thanked each instructor, and he sincerely thanked each instructor.

In just over two months, he has learned so much.

Moss waved his hand: "Okay, you can go to the next classroom, I hope you can go down to the next floor." ”

Chen Cong smiled slightly and turned away.

Morse looked at his departing figure and muttered to himself, "Interesting little one." ”

Immediately, he lowered his head to read the book, and the classroom was once again as quiet as the smell of a falling needle.

……

Chen Cong finished the reasoning class, it happened to be afternoon, and there were still more than two hours before the end of the class, so he didn't waste time and went straight to the last classroom.

This is psychology, the difficulty is not weaker than that of reasoning, but between the two, there are a lot of commonalities, simply speaking, psychology is actually a point in reasoning, but it can be independent, obviously the things to learn are not simple.

It's just that this time, Chen Cong was a little surprised, from the first layer to this level, the instructors he met were all middle-aged or older, but this time the person who taught psychology was an Asian woman, not only young, but also quite beautiful.

When Chen Cong walked into the classroom, the woman also happened to turn her head to look, and after her eyes met, the woman's brows furrowed slightly.

"You're not fit to study psychology." Before Chen Cong could speak, the female instructor suddenly said.

[Reasoning is related to the plot of Chen Cong's return to Huhai, and psychology will have an impact on his totem power in the next few chapters, which is also the biggest change in his totem power since his training, it can be regarded as an important turning point, and he will return to Huhai after the turning point, so don't worry. 】

[In addition, I wrote here, Buyi would like to ask for your opinions, whether you want a single heroine or multiple heroines. In fact, at the beginning, I wanted to be a single heroine, but now I have written, and I find that I am reluctant to give up any of them. So let's leave a message in the comment area of this chapter.,If you want a single heroine, write a single heroine and the name of the heroine.,Write multiple heroines if you have more heroines.,Students who have no opinions can ignore it.。 At that time, I will make a decision based on the side with the highest voice. 】