Meari did not directly answer whether she wanted to participate in the gambling. She pondered for a moment and continued to ask about the specific rules.
"Do we only need to state the number of coins, or do we need to be more specific?"
Ruribird knew that Meari was hooked by asking this question. She smiled and shook her head gently: "No need, we only need to guess the number of coins."
Saying that, Ruribird Nadeshiko looked at Kurume Laiwei and suddenly suggested: "Kurume, do you want to be our Dealer for the game?"
"Huh!? Me?" Kurume exclaimed in surprise. She originally thought she was just a guide, but she didn't expect to have some involvement in the gambling.
"Meari, do you agree?"
"I think so too." Meari nodded.
Meari and Kurume are quite familiar with each other, so she felt at ease having her as the Dealer. After all, Kurume shouldn't go so far as to collude with an outsider to trick her, right? After all, they see each other all the time.
The game of "Listen to Heavy Money" is not complicated. In this short time, Meari has already grasped the key to this game.
Meari searched for the weight of the coins: a 1-yen coin is 1g, and a 50-yen coin is 4g.
Knowing how many coins and what kind of coins she put in, she could calculate the weight of her own coin bank. At this point, she could predict how many coins the opponent put in by the tilt of the scale.
This is a typical mathematical inequality problem.
If the scale is balanced, it means that she also knows the total weight of the coins in the opponent's coin bank.
Then, it's about using unknowns x and y to set up formulas and using mathematical knowledge to guess the number of the opponent's coins.
This is completely her specialty! Meari secretly rejoiced.
By the way, she originally thought that Ruricho Nadeshiko, who looked very much like a young lady, would choose a more elegant gambling project, but she didn't expect it to be such a down-to-earth gambling game.
Perhaps Saotome's smile was too obvious, Ruricho Nadeshiko smiled gently.
"Saotome, don't think this game is too simple. I guess you're probably thinking of using the weight of the coin bank to determine the number of coins right now."
"Isn't that right?" Meari retorted.
"Of course, but you've forgotten another important key: the sound!" Ruricho Nadeshiko casually picked up a coin from the box and dropped it into a coin bank. The coin made a crisp sound, jingling for a while before stopping.
She smiled and said, "The sound of coins falling into the coin bank is much more useful than you imagine."
Indeed, when coins fall, one can know the approximate number of coins, which can help narrow down the range of the "inequality."
No wonder the name of this game is "Listen to Heavy Money."
Meari was enlightened but also had some doubts, looking suspiciously at Ruricho Nadeshiko: "You're so kind?"
She is the Dealer of the casino. To earn her money, shouldn't she deliberately conceal the key to gambling or secretly cheat? How could she be so kind as to tell her so much?
Was it because she was a friend brought by Kurume, so she was friendlier to her?
Ruricho Nadeshiko said faintly: "Don't overthink it. I'm just reminding you that any behavior that interferes with hearing is prohibited later. After the opponent announces the placement of coins, all coins must be placed within ten seconds, and no other sounds are allowed during this period."
So she wanted to warn me not to make small movements... Meari's doubts disappeared.
Before the game started, Meari still cautiously asked: "Can I put both of these coin banks on the scale to see?"
These two coin banks seem to be the same style, but what if they were tampered with on purpose and their weights were different?
There's no Captain Dragonfly in this casino, so she must guard against the opponent cheating.
"Please, feel free. You can also put coins in and try a few more times," Ruricho Nadeshiko said generously.
Meari placed the two coin banks on the scale. After a brief few seconds of swaying, the scale returned to balance.
Meari switched sides and measured again; the scale remained balanced.
Then, with Ruribird's permission, she took out different numbers of coins, put them into the coin banks, and began to observe the stability of the scale.
After patiently testing for a few minutes, Meari gained some understanding of the scale's tilt range and confirmed that it likely hadn't been tampered with.
The rules were fair, and no service fee was charged. Her demeanor was very relaxed, and she allowed people to try repeatedly, seemingly full of composure, as if she was very confident in this gamble, believing she could win.
Although this attitude made Meari feel a bit heavy-hearted, Meari still believed in her own abilities and nodded, saying, "I'm ready. Let's begin."
"We players will be divided into first attacker and second attacker, and we will repeat guessing in this manner. The game will be declared over when both sides have answered or when this round ends. Then, the final answer will be announced."
Ruricho Nadeshiko smiled and suggested, "How about we start with 100,000 yen?"
100,000 yen, not too much, not too little. Meari had about 1,000,000 yen in available funds, which could support several rounds.
Kurume quietly tugged Meari's arm and whispered in her ear, "Meari, let me tell you first, Ruribird is very good at this game. You'd best be careful."
"Don't worry, I also have my own confidence," Meari said confidently.
In terms of mathematics, she still had some confidence.
"Don't blame me for not warning you if you lose…."
"It's fine. The bet amount isn't much for one time. Even if I lose once, I can afford it."
Seeing that Meari didn't take her words seriously at all, Kurume sighed softly and stood in the middle of the gambling table.
She had already warned her. If Meari lost, she wouldn't take the blame.
"Saotome, you go first."
Ruricho Nadeshiko pulled a watch from her pocket and slowly put it on her wrist: "Once I agree, please put the coins into the coin bank within ten seconds."
"Well… now let me listen to your sound."
The first round was Meari's turn.
It's best to put as few coins as possible into the coin bank. The lighter the weight, the fewer coin combinations there are. The more coins, the more likely errors will occur.
In the first round, to ensure she guessed the correct number, it was better to have fewer coins….
Meari thought this, hesitatingly placing 3 one-yen coins and 4 fifty-yen coins into one of the coin banks.
When the coins were put into the coin bank, they clinked, making a rustling sound that Meari found very pleasant.
When she was little, her favorite sound was the clinking of coins as she secretly put her saved coins into a coin bank.
Ruribird chuckled, "Meari, the sound you made was too loud, wasn't it? Do you really think I can't hear it? My ears heard it clearly."
"Is that so? Then why don't you guess?" Meari said provocatively, crossing her arms.
She didn't believe Ruricho Nadeshiko could guess the number of coins just by hearing that little sound.
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