Tokyo: Rabbit Officer and Her Evil Partner-Chapter 320 - 241: The Three-Door Problem

Damn, how does this guy draw so accurately?

It was the first time Fushimi Roku cursed inwardly. He didn’t care about losing ten thousand yen; he just wanted to know how Sazaki Gen managed to win.

Besides, Sazaki Gen’s victorious mannerisms were really infuriating.

"I’m done playing!"

Fushimi Roku threw the cards and got up to leave. Despite having only a C in Will, his intelligence was still an S, telling him he should know when to cut his losses.

Ishii Takamasa wanted to persuade him further, planning to provoke Fushimi Roku into a frenzy. Once he lost everything, he’d naturally comply with the Inakawa Association’s demands.

However, Sazaki Gen stopped the chairman with a glance, signaling that Fushimi Roku could leave and that if he ever wanted to play the Joker card game again, he could always find him for a few rounds—he was worried if they kept playing, Fushimi Roku might get really upset.

As he expected, the gambling addict Mr. Fu Jian was in a terrible mood, leaving with a bottle of red wine as he went.

On the way home, Fushimi Roku pondered how he managed to lose.

He had heard that some cheats used specially made playing cards, where the patterns on the back contained hidden tricks, allowing them to identify the card numbers from slight variations in the design...

Could Sazaki Gen have bribed the restaurant staff in advance, even the deck he bought at the front desk had been tampered with?

No, he trusted his vision—he had checked those cards himself and there were no special markings on the backs.

Playing Joker isn’t like playing Texas Hold’em; there are no sophisticated card-counting techniques needed, since it is essentially an open-hand game—the only point of strategy is in the few seconds of drawing cards.

How exactly did Sazaki Gen do it?

Fushimi Roku somewhat regretted not taking the two decks of cards to study at home. Going back to the restaurant to ask for them now would make him seem petty.

Though he was indeed petty, he didn’t want others to think so.

Upon returning to Sugamo Apartment, Fushimi Roku took out his keys to open the door and suddenly the door of the neighboring room creaked open. Shirakawa Miki peeked out her face, giggling silly, muttering something about meeting in the New World... His already foul mood worsened when he saw this.

"Idiot."

Fushimi Roku didn’t hold back, crisply articulating the insult right in her face before opening the door and going back inside.

Minamoto Tamako hadn’t finished her shooting practice yet, leaving the living room empty. Fushimi Roku sat on the sofa watching TV alone, feeling increasingly agitated, so he called Taira Sakurako to join him in playing Joker.

Although she was mature, she was still just a seven-year-old, unable to refuse playing games with familiar people, even if it was someone like Fushimi Roku who loved to cheat.

In order to figure out how Sazaki Gen had done it, Fushimi Roku mimicked Sazaki Gen’s actions and words, pointing to his card and claiming it to be the "JOKER" or another number card.

The two played over sixty rounds, with wins and losses on both sides.

Fushimi Roku calculated that Taira Sakurako won 36 hands, while he only won 24, meaning her win rate was 10% higher than his.

Moreover, during the games, Fushimi Roku noticed a pattern:

Whenever he had three or more cards, and he declared one as the "Ghost card," Taira Sakurako would immediately change her choice and draw another card; but when he had only two cards and declared one as the "Ghost card," Taira Sakurako would immediately draw the declared card.

Afterward, he asked Taira Sakurako why she did it, and she gave an explanation based on the Monty Hall problem model:

"In summary, the probability of winning by changing cards is (\frac{2}{3}), while the probability of winning without changing is (\frac{1}{3}). The mathematical model proves that switching is a better strategy..."

Fushimi Roku understood, the main idea being: When he declared a card as the ghost card, the winning probability of switching was higher.

But it only increased the winning probability by about 10%, nothing like Sazaki Gen’s sure-fire win.

Sazaki Gen had already declared victory before opening his cards, indicating he knew beforehand what card he would draw... That guy definitely cheated, but for now, he couldn’t figure out how.

Once Minamoto Tamako came home, Fushimi Roku pulled her into playing the Joker game. Just as Taira Sakurako got tired of it, Minamoto Tamako took over.

Minamoto Tamako wasn’t interested at first, thinking it was pointless for two people to play Joker. But when Fushimi Roku suggested betting with Redemption Vouchers, she immediately perked up—since Redemption Vouchers weren’t currency, it didn’t count as gambling.

To earn a big haul and quickly save up for Red Redemption Coupons, Minamoto Tamako quickly took a bath, not even drying her hair completely, with her hair ends still damp, she eagerly knelt on the couch, urging Mr. Fu Jian to hurry up and start.

Fushimi Roku planned to mercilessly crush her, recovering his loss of 12,650 yen. He deceptively dealt the ghost card to Minamoto Tamako while shuffling.

She didn’t notice, holding the five cards up close for inspection.

"I’m going to draw now..."

Fushimi Roku stretched out his right hand, hovering his fingers over the first card on the left, and Minamoto Tamako couldn’t help but flash a sly smile; so Fushimi Roku moved his hand away, hovering over the second card, and Minamoto Tamako’s face immediately fell, looking anxious.

"..."

It was way too obvious.

Fushimi Roku reached out and drew the second card, making Minamoto Tamako pout in displeasure.

He turned the card over and, as expected, it was a pair card.

In three rounds, Fushimi Roku had matched all the pairs and played all his cards, effortlessly winning a White Redemption Voucher from Minamoto Tamako.

"Did you cheat?" Minamoto Tamako expressed doubt, as Fushimi Roku had won too quickly.

She demanded a card reshuffle and insisted on doing the shuffling and dealing herself.

Fushimi Roku didn’t care; knowing Minamoto Tamako’s character, she wouldn’t cheat, so letting her shuffle and deal saved him the trouble.

The second round officially began, and Minamoto Tamako was lucky this time—she didn’t have the ghost card and it was her turn to draw first.

Just as she was about to reach out for a card, Fushimi Roku mischievously raised his right hand, pointing at one of his cards, saying with ill intent, "This is the ghost card."

"Huh?" Minamoto Tamako was stunned, "What do you mean by that?"

Fushimi Roku did not respond, keeping his right index finger poised over his left-hand cards.

Minamoto Tamako’s eyebrows furrowed, her little brain rapidly processing, suspecting it could be a trap—Mr. Fu Jian might be telling the truth, deliberately using reverse logic, or lying to lure her into a trap, or using reverse reversal logic...

Humph, she wouldn’t fall for it!

Stubbornly, Minamoto Tamako stuck to her choice and drew the card, only to flip it over and see her face fall again.

It was indeed the "JOKER".

What just happened? Mr. Fu Jian actually wasn’t lying...

Minamoto Tamako felt extremely let down, staring at her six cards, contemplating which pair to play. After her move, Fushimi Roku mischievously pointed at one of his cards again, grinning as he said, "This is a 3..."

As soon as he spoke, he realized something.

Hmm...

Looks like... freeweɓnøvel~com

Have I been played too?

This content is taken from (f)reewe(b)novel.𝗰𝗼𝐦