The Three Doors Problem! Saving Bu Wang!

After the Crowman finished speaking, Lin Yu's expression shifted slightly.

This "hint," combined with the room's layout and the information he received during the first question...

All of it made Lin Yu immediately think of a very classic "probability theory problem."

As expected.

The Crowman spoke again.

"Caw caw, congratulations then, you've arrived at the 'choice' problem in the first room."

"Caw caw, as you can see, there are doors of different colors in this room—only one door leads to the next room."

"Caw caw, the rest of the doors... you already know, they lead to the 'endless' void—fall in, and it's a dead end!"

"Caw, all of your answers must remain consistent, you must all choose the same door, only then will I lead you through!"

"So, everyone, please now... make your 'choice,' and state the color of the door you wish to choose!"

As the Crowman spoke, Lin Yu instantly understood.

Bu Wang also spoke at the same time, "This is the Monty Hall Paradox... also known as the Three Doors Problem!"

Bu Wang said in a low voice, and Lin Yu looked at her with some surprise.

"You know about this?"

Bu Wang looked at Lin Yu, her expression somewhat displeased, "This isn't some incredibly profound or cutting-edge theory... isn't it normal for me to know?"

"While stealing your bicycle was my fault, you can't question my knowledge!"

Lin Yu was speechless.

He had indeed subconsciously underestimated Bu Wang's knowledge—after all, this young girl's profession was "Thief."

Based on the fact that everyone's awakened profession was likely related to their lives, and coupled with Lin Yu having encountered a "Thief" in the first instance...

Lin Yu had almost subconsciously assumed that this girl was a professional thief, just like Yao Zhengye!

And a professional thief of this age would certainly not have attended school.

Knowing basic elementary school math was one thing...

This "Three Doors Problem" was content from probability theory, though it was very basic...

Its popularity wasn't that high.

Lin Yu looked at April, Number Eight, and Uncle Tie.

These two university students and the white-hatted construction supervisor clearly hadn't heard of this theory.

They all looked at Lin Yu and Bu Wang, completely bewildered.

"What is the 'Three Doors Problem'?"

Bu Wang glared at Lin Yu indignantly, "Then you, Nine Waters, can explain it!"

The water level was rising, and Lin Yu didn't have the mood to argue with Bu Wang, so he simply explained the Three Doors Problem.

"This problem originates from a game show, and it's exactly like our situation."

"Simply put, a person has to choose one of three doors. Only one has a prize, the correct door, and the other two are incorrect doors."

"When the person chooses a door, it doesn't open immediately. The host opens another incorrect door and then asks if they want to switch 'doors'—the debate here is whether switching doors increases the probability of choosing the correct door."

Due to the time crunch, Lin Yu didn't give them time to think freely.

"I'll just state the conclusion: yes, it does—if you don't switch, the probability of winning is one-third; but if you switch, it's two-thirds!"

This conclusion, which sounded somewhat counter-intuitive, immediately drew skepticism from Uncle Tie, April, and Number Eight.

"You mean, we choose a door first, and after this Crowman opens one, we immediately switch to another?"

Uncle Tie asked, his tone incredulous.

"That's right," Bu Wang said eagerly, "This is a 'probability theory' problem, and the mathematical community has long since reached a conclusion. If you want to know why, Nine Waters and I can explain it after we're safe in the next room!"

"For now... just do it this way!"

As the water level rose higher and higher, Bu Wang could no longer reach the ground.

She paddled continuously, her tone naturally carrying a hint of urgency.

"Alright, then I'll trust you for now," Uncle Tie said through gritted teeth, "So we just pick any door for now, right? Then let's pick red!"

"Okay, red it is!"

April and Number Eight quickly chimed in.

The five of them collectively chose red, and the Crowman chuckled.

"Caw caw, you chose red the first time... very good, now I will proceed with the 'hint'!"

Then, the Crowman flapped its wings, and the yellow door opposite the red door opened.

"Splash—"

Behind the yellow door was a pitch-black void, and water surged out from the door, the massive current pushing the group towards the yellow door.

Although the water level began to recede, bringing relief to the five players, they soon realized...

The flow rate of the water was also quite dangerous!

"These rewards are such a rip-off!"

Number Eight cursed, quickly grabbing April to prevent his girlfriend from being swept away.

Uncle Tie, to the side, also swam against the current with both hands, bracing himself with a horse stance to maintain his balance.

Bu Wang, who already couldn't touch the ground, completely lost her balance.

"Help me!"

She desperately paddled, watching herself being swept away by the current.

And when she was less than half a meter from the Yellow Door.

Lin Yu, who stood as steady as a rock in the water, sighed. Using the "Soldier" profession's five-fold physical abilities, he easily took two steps forward, grabbed Bu Wang by the collar of her jacket, and carried her back to the center of the room.

Still shaken, Bu Wang looked at Lin Yu and said, "Thank you... Thank you, Nine Waters."

"You're truly magnanimous. Even though you threatened me with your gun earlier, in the end, it was you who saved my pathetic life..."

Bu Wang said, gasping for breath.

Lin Yu helplessly flicked her forehead. "I just didn't think you deserved to die!"

Although her stealing the bicycle was detestable, Lin Yu didn't think she deserved to die for it.

After participating in the "Death game," Lin Yu's mindset had undergone some changes: when necessary, Lin Yu was absolutely capable of killing someone.

But this didn't mean Lin Yu had become a cold psychopath who would watch others die or kill indiscriminately.

Although "Bu Wang" had some conflicts with him, she truly wasn't at a point where she needed to be killed.

Moreover...

Lin Yu had vaguely realized that even though "Bu Wang's" profession was "Thief," she might be the most useful teammate in this "Deadly Q&A" game!

After all, Bu Wang seemed very intelligent.

As the Yellow Door opened and the water receded much slower than it drained, the water level in the room quickly dropped, returning to below everyone's waists in a short time.

The water flow also slowed down considerably. Lin Yu released Bu Wang's collar, but the young woman seemed still shaken and was still clinging to Lin Yu's arm.

"This current won't sweep you away anymore!"

Lin Yu said somewhat helplessly.

"No way, besides, that couple over there hasn't let go either!"

Bu Wang pointed at Number Eight, who was still holding April.

Lin Yu was exasperated. "You know they're a couple... We don't even know each other."

"Then it's not impossible for me to be a couple with you," Bu Wang said shamelessly. "Brother Nine Waters, I like you!"

"Get lost, stop joking around."

Lin Yu said helplessly, but in the end, he didn't force Bu Wang to let go.

The remaining three heard their conversation.

April nudged Number Eight, and Number Eight sheepishly let go.

"This current is really fine now."

Uncle Tie, who had been standing alone in a horse stance, suddenly said with some emotion.

"Youth is truly wonderful... But, even though the water level has gone down, let's hurry and switch doors!"

"All that's left now is that blue door, right?"