Chapter 152 (2/2)

The sound insulation effect of this screening room is very good, but there is still a crack in the door. Liu Yanbo has excellent hearing. After lying on the ceiling for about two minutes, he hears a rule that the gangster has a walkie talkie, which rings once every five seconds, a total of seven times. Each time, different people are reporting ”safety”.

When the walkie talkie rings seven times, it means that at least seven groups of people are hiding in different positions. In addition, six gangsters in the screening room are counted as a group, which is eight groups in total.

Liu Yanbo looked at his watch and determined the time.

It's 10:33 p.m., less than an hour and a half from the four hours when the city officials agreed with the gangsters. He knew that he had to find the 25 gangsters who had been divided into eight groups as soon as possible.

According to pan Yuyi's intelligence, the positions of five groups of people in the eight groups have been determined. It is only necessary to find the other three groups.

Fortunately -

Liu Yanbo is always good at tracking people. It took him about 20 minutes to find the other three groups.

There is a lotus pond behind the library. There is a birch forest on the left side of the pool. There is a group of two hiding in a pavilion in this forest, with two hostages tied with hands and feet and mouth blocked.

About 30 meters south of the birch forest, there is a small auditorium, in which there are seven gangsters guarding most of the remaining hostages. Lin Xue is locked here.

About 20 meters to the north of the auditorium, there is a five story teaching building. On the top of the building, there is also a group of two with two hostages.

……

There are 12 members in the six two person groups. There are six gangsters and seven gangsters in the two places where the hostages are held, that is, 13 guards.Liu Yan, I've found twenty-five gangsters by myself.

Out of selfishness, Liu Yanbo decided to set the small auditorium as the first target.

It was probably for the convenience of six two person team operation support hidden in the outdoor. Although all the buildings in the school were on, there were not a few street lamps on the campus, which made Liu Yanbo's action more convenient.

Under the cover of the night, Liu Yanbo once again touches the small auditorium where Lin Xue is held.

Liu Yanbo shrinks his body in the drainage ditch in front of the auditorium. Before taking action, he must ensure that everything will develop according to his expected direction, without any mistakes.

In September, the weather has already turned cool.

The water in the ditch is also very cold, and the taste is not very good, but Liu Yanbo just lies in it, letting the cold water wet his clothes and prick his skin

He is waiting for people in the auditorium to say that sentence in English: safety. At the same time, he is doing the final calculation.

If the gangsters in the auditorium are numbered as the first group, then the two snipers lying on the fifth floor of the building are the second group, and those in the birch woods are the third group In the projection room is group eight.

From the first group to the end of the eighth group, it will take at least 40 seconds for the gangsters to finish this round. From group 8 to group 1, this is another round, or about 40 seconds

This method is very careful, but also the biggest flaw, because it is too regular.

According to this method, after the first group of gangsters reported safety once, they had to wait at least 80 seconds before it was their turn to report again. However, it is not without benefit for them to report security in this regular order. For example, when the seventh group finishes reporting, it is the eighth group, and the eighth group is the seventh group. That is to say, when solving the two groups, it must be completed within 10 seconds. Once exceeded, all the hostages in the projection room will die.

However, the shortest distance between the two buildings in the second group is the shortest distance between the second and the seventh floor.