Chapter 189: 21 points

The play of Xiao Miao, A Chi and Teacher Benny is very simple, it is the most popular "Blackjack".
The dealer sends two cards to each person, one bright card and one dark card.
Players decide whether they want a third card based on the sum of the two cards.
The points of all playing cards add up to the size, 21 is the largest, and if it exceeds 21, it will be cleared.
The pub is actually a casino, and people sitting around the table inevitably have to gamble two bets. They only need a deck of cards and the simple and rough rules of "Blackjack" is the most popular game in the bar.
Compared to the enthusiasm betting at the neighboring table, where people sometimes lose their and even make big shots, Xiao Miao use French fries as their chips, and the loser only needs the winner to drink a glass of beer. Hurt and angry.
Teacher Benny invited Jo Ann to play together. Joan admits frankly that he doesn't understand the rules of playing cards, just watch them playing.
As a simple kid who was educated away from the gambling table by his grandfather since he was a child, Joan was not interested in playing cards, but after watching a few games, after understanding the rules of the game, his brain with an intellectual property of 22 could not help running at high speed.
According to Xiaomiao and others, playing cards is a kind of gambling game. Winning or losing is mainly based on luck, and the skill of the card is mainly reflected in the observation and observation. According to the change of the opponent's expression, he guesses whether he really has a good card or just bluff.
However, the table in Joan's eyes is another world-a pure and charming mathematical world.
In Joanne's view, the "21 o'clock" game rule is actually a probability calculation under given conditions.
The quality of the board is indeed determined by random luck. But if you choose to continue to ask for a card after you get a deck, you can't rely on luck.
Smart people should make the most rational decision, that is, the biggest chance of winning on the basis of probability calculation.
Joan sat at the table watching three people playing cards, silently calculating the probability of winning corresponding to different card types.
After half an hour of analysis and comparison, he found a best strategy for "Blackjack".
However, secretly secretly ecstasy only lasted for a minute.
After further analysis, Joan was disappointed to find that this strategy can only guarantee a win rate of 49% at most, which is not cost-effective in the long run.
Joanne didn't give up.
Rather than saying that he was eager to win this game, he was more obsessed with solving a mathematical problem.
The current analysis is still only on the calculation of the hand. Joan soon realized that there is another type of data that is not fully utilized, that is, the pile of cards left after the dealer has dealt the cards.
With reference to the open cards in the player's hands, one can guess how many cards of various points in the remaining cards.
Joan uses a simple card-recording method to divide the cards of different points into big and small cards, adjust the game strategy according to the changes in the number of cards on the table, and roughly calculate it can increase the winning rate by 2%.
With the combination of the two strategies, Joan’s mathematical expectation of winning the hand reached 51%, which is undoubtedly a qualitative leap!
However, he is still not satisfied, thinking deeply about what data is available at the table to further improve the game strategy.
The cards themselves are no longer able to provide more valuable information, and the subtle expression changes and psychological games that casino veterans value are not important to Joan.
After all, he is not the kind of teacher Benny, lacks understanding of the three teachings, nine professions, and all walks of life.
After a period of thinking, Joanne finally found his "New World", which is the third type of data at the poker table that is different from cards and players-bets!
Next, what Joan needs to do is to calculate the most favorable bet based on the winning percentage of the existing cards.
The fool also knows that the better the hand, the bigger the bet, and vice versa. But when it comes to the exact formula of win rate and bet, few people can make it clear.
Joan was inconvenient to come up with paper and pen calculations. With an intelligence attribute of up to 22, it took him half an hour to sort out the correlation formula between winning percentage and bets.
According to the formula betting, in the long run, the optimal strategy of "win big and lose small" can be realized.
Of course, no hand can continue indefinitely, even if Joanne summed up the best strategy, it is normal to lose the within an hour. After all, the fewer samples the greater the impact of luck.
"Sister Meow, do you want to continue sitting?" Joan asked suddenly.
"I'm feeling lucky, of course I want to continue to be a Zhuang." Catwoman looked over in surprise.
"Will that be me?"
"Interested in playing two?"
Joan nodded shyly.
"Okay!"
Little Meow gave him a card.
Joanne picked up the card and awkwardly attracted Xiao Miao's laughter.
However, it didn't take long for her to laugh.
Joan seemed to be particularly lucky, and the french fries in the plate in front of him quickly piled up into a hill.
Xiaomei's chips were getting worse, and finally lost an hour later, dropping the cards angrily.
"No more! I'm so mad!"
"Joan won the most, and I really can't see it as a novice." Teacher Benny said with a smile.
"It’s not surprising that the novice luck at the gambling table is always very good, otherwise there will not be so many people indulging in gambling, and the novice always thinks that their good luck can be maintained forever. "The tricks." While squeezing her emotions, she had not forgotten to make up the most critical sentence: "Today Xiao Miao invites everyone, let go of your belly and drink!"
"I don't think that Joan wins all by luck." Teacher Benny grinned lightly. "If I read correctly, he seems to have mastered a special card skill. With this card skill, you can win more and lose less."
"How is this possible?" A Chi widened his eyes in disbelief. "If there is such a winning game, Joan doesn't have to do anything else. Wouldn't it be easy to make a fortune by playing a few cards every day? !"
"In theory, it is possible, but in reality the game is not always fair. Even if Joan wins the bet with Superman's card counting ability, the opponent may not allow him to take the chips."
Teacher Benny shook his head with a wry smile.
"Joan is very smart, but there are more than one gambler who is proficient in counting cards. Experienced gamblers will find out that he is counting cards and not playing with him. If it is in a casino, the situation will be worse. Once found, they will be expelled from light to bad hands, young and promising mages like Joan will develop sooner or later, why take the huge risk of being a professional gambler."
When Ah Chi chatted with teacher Benny, Joan's mood also fluctuated sharply with the conversation between the two.
At the beginning, he heard that he could easily make a lot of money by using card counting skills. He couldn't help but be tempted, but after listening to Teacher Benny's pessimism, his heart was half cold.
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