If the first of these four idioms on the blackboard is changed, it can be changed by 'Li killed someone!' And combined into another form of expression with different intentions, namely, 'Murder, Lee!' ’

Obviously, the former focuses on informing everyone that the murderer is a person surnamed Li, in order to expose it; The latter focuses on reminding people surnamed Li to be careful of murderers, as a warning.

However, the fact is that the four idioms on the blackboard are not arranged according to these two meanings, but deliberately disrupt the order. Imagine how urgent the situation was at that time, and why did the victim do such a tricky thing before he took his last breath? The only explanation is that the deceased wanted to express both meanings at the same time, in other words, the person surnamed Li killed someone, and this so-called person reminded another person surnamed Li to be vigilant before he died!

Of course, this is just Zhen Shifeng's speculation, but this speculation cleverly connects two already unrelated clues. Returning to the confessional note just now, although the note itself is shabby, the handwriting on it is quite neat, which is in stark contrast to the chalk words on the blackboard. One thing to note is that if the confession and the murder are placed under the same urgent situation, that is, the situation at the time of the killing, then the victim urgently needs to remind someone, and the confessor urgently needs to show his heart, and the object of the effect is the girl named Li Lingling, so don't the two just constitute the relationship between the deceased and the murderer? In this way, the motive for the murder can also be naturally discovered, that is, love killing.

At this point in the reasoning, the truth gradually surfaced. Brother Feng casually ripped off the seating table and stood at the back of the classroom to look at the layout of the entire classroom, taking this as an observation point, Li Lingling's position is in the upper left of the space, Li Xuan is the lower left, and the other four boys surnamed Li are sitting in the four corners of the space. So the question is, why is the location of these four people so strange? Apparently someone did it on purpose.

Zhen Shifeng once again made a bold assumption based on the above conclusions, if it was a love killing, then two of the four boys surnamed Li might be rivals in love. In order to avoid conflicts, the head teacher deliberately moved them to a diagonal position that was farther away from the corner line of the classroom, of course, taking care of the emotions of other people, and the remaining two boys surnamed Li were also transferred to another diagonal line to show fairness. And Lingling is located in the upper left of the classroom, so this pair of love rivals must be at the opposite ends of the diagonal line on the upper right and lower left, so as to prevent too much contact with Lingling.

As for the other key person, Li Xuan, she may have played the role of the provider or provider of the murder weapon in this case, and her position is very close to the position of the boy surnamed Li in the lower left corner, so the box of fine needles can be easily obtained in her hand.

Murderer: Li Xian, Victim: Li Ming, Key Person: Li Lingling, Person Involved: Li Xuan.

In order to verify his guess, Brother Feng compared the confession note with the handwriting on the boy's book, and the truth was indeed so!

From the initial clue point to the next connection conditions, to the current case composition. Based on assumptions, using a large number of inferences to fill in, and finally getting a reasonable conclusion that is closest to the truth, this is the charm of logical reasoning, and it is also the strength of Zhen Shifeng as a detective.

Of course, the matter is far from over, looking at the slightly yellowed seating table in his hand, and then glancing at the confession note that has been crumpled into a ball, he suddenly noticed a key point that he had overlooked. If you look closely, although the paper strip is printed with two grid lines, which seem to be torn off the corner of a notebook, but it itself has a faint mildew color, imagine what student would use such a yellowed notebook?

Thinking of this, Zhen Shifeng hurriedly turned around and looked at the bulletin board at the back of the classroom, where a corner of a slightly yellowed watch was torn off, which was exactly the same as the white note, both in terms of traces and color. More importantly, the names of the four key people marked on the value week table correspond to their serial numbers and the date of the value week, and after combining and arranging according to the size of the serial number and the date, you can smoothly obtain eight kinds of eight-digit passwords.

"Haha, finally ............ It's not easy for me to finally get it! In addition to the excitement, Brother Feng quickly tried the eight passwords one by one, and when he entered them for the fourth time, he only heard a grunt, the spiral hand turned quickly, and the door slowly opened, along with the very sharp exclamation of Bao Fenbo: "Congratulations to the No. 7 guest for winning the final place!" ”

The scene was suddenly jubilant, and whether they supported Brother Feng or not, the audience still praised them without hesitation. According to the host, this murder room is completely comparable to the difficulty of the final battle, compared to other escape room games that mainly search for props to find clues, this kind of game situation that mainly relies on logical reasoning is more brain-burning, and it can also show the player's extremely high intelligence.

"The last place, the fifth? Alas, it's a shame to rub shoulders with the first place! Zhen Shifeng couldn't help but shrug his shoulders, already dissatisfied.

Bao Fenbo was really hard to complain, so he had to sigh helplessly, and then he raised the microphone and cheered loudly: "The survival sprint preliminaries are officially over, let us congratulate the five guests who have advanced!"

At the same time, the numbers of the five guests and the time taken of the competition were listed on the big screen, and the first place was Miss Chu Feiyan, who can be described as the heroine among women. As for Xiao Ming, he was the first to pass the first two levels, but he dropped the chain in the third level, and he walked out of the secret room in a lack of interest after the game was announced. Of course, Zhen Shifeng would not let go of this opportunity to ridicule others, and his two little fingers poked down weakly and expressed his contempt without reservation.

"Don't worry, I'll pay it back one day, cousin!" Of course, Xiao Ming can only talk about it, how could the other party's level of weird guy allow him to have any chance to fight back, and his past experience is the best proof.

Inside the private room above the grandstand

"Lao Wang, your classmate is really amazing, his IQ is off the charts, he is even better than Sherlock Holmes, even the policeman who specializes in criminal investigation and solving cases is probably thrown off the rhythm of two streets, you must not be bad to be able to go to school with him, right?"

"Huh......... Hehe............ Hehehe, I think the last sentence is the point, please don't use the stalk of 'classmates' anymore, okay! "The goatee man really wanted to cry without tears.

After a commotion, the scene gradually quieted down, and Zhen Shifeng and the five of them were immediately taken off the venue to prepare for the next finals............