Name: ブラックジャックのプロだけど、「カジノ」について質問ある？ | Tech Support | WIRED Japan
Uploaded: 2025-02-26T08:46:25.000Z
Duration: 14 min 4 s
Description: VoiceTubeの動画で発音を聞きながら英語表現を覚えよう！学べる英語：

I'm Yu-Chan Lee, professional blackjack player and a former member of the MIT card counting team.

I'm here to answer your question from Twitter.

If you don't have any skills, the best odds is by far Baccarat.

You will lose about 50 cents for every $100 you put out.

If you play for a long time, you still lose money.

It's still the least amount of money you can lose if you have no skills.

The best game out there, if you do have skill, I believe is blackjack.

If you are a regular player, you walk into a casino, you'll lose somewhere around $1.50 to $3 per $100 that you bet.

If you are professional blackjack players, you will be able to win $1.50 to $3 from the casino the other way around.

From ReactGPT, what is the worst casino game in terms of odds?

There's no question the worst game in a casino are the slot machines.

Odds range of anywhere between 80% to 99% payout.

That means when you put $100 in, you may only get $80 out or $99 out.

Can casino kick you out for winning too much?

Most of the casino don't kick you out for winning because they believe the law of large number will eventually help the casino win back any money that you've won in the short period of time.

This is the concept that in statistics, no matter how random something is, when you do a lot of these random events together, at some point, there's a norm that comes out.

However, if a casino found out you are a professional and you have an edge over the casino, the only law on the book that a casino can kick a player out is through the trespass law.

And in fact, they have to, otherwise they will go bankrupt.

And the way they do this is through what's called a Monte Carlo simulations.

You simulate millions and millions of these hands.

And based on a simulation and the outcome, you can compute what the expected win or losses.

This is how a professional blackjack team figured out what is the optimal hand to play.

Unfortunately, there's no way to win in a roulette as is.

And part of the reason is you can bet red or black.

If it lands in these greens, you'll basically lose.

The reason the casino have an edge over the player in a roulette is, are these two green numbers here.

There is however, a way to win in a roulette.

And that happens when you step into a very old, not well maintained casino, where the roulette wheel itself is not balanced.

When it's not balanced, there are parts of the wheel that get less probable of a chance of landing the ball in the slots along that area.

And you observe that over a long period of time, you can actually beat the casino by just eliminating as little as two to three numbers.

What are the odds of winning slot machines?

In some states, the range to which is legally allowed for the casino to set the dial could be as low as 80% and as high as 99%.

That means, you know, for every $100 you bet, the casino goes set it so that you will win back only $80 out of it.

So slot machines has a dial that casino can tweak and create the odds that they want for their business.

It requires a whole committee to come down and agree on this is what they need to do.

But in a more sort of off-strip shady casino, we have heard a story from insiders that busy, you know, Super Bowl nights or whatnot, they literally crank up this so they can make more money.

They ignore a few statistical concepts like expected value, hot hand fallacy, probability in general.

Think of expected value as the mathematical truth of how much money you are winning on losing.

Most of the player in the casino, most of the game, you have a negative expected value.

That means over time, law of large number will take over and you will lose money.

Hot hand fallacy is the concept of streaks.

A lot of players, when they set a table, they keep winning.

And when they're winning, they're like, I'm in a hot streak.

When in reality, every hand is completely independent.

But randomly, over a short period of time, you could have lots of winning hands one after another.

And again, the concept of all of these is rooted in the math of probability.

The law of large number eventually takes over.

The expected win or lose eventually play out.

There's actually a perfect way to play your hand.

And the perfect way is that based on the cards you have in front of you against the face up card from the dealer.

There's a mathematical way that pair in these wins.

And I have here a pretty standard, what's called a basic strategy chart.

You can Google these and find a lot of variations of it.

And by the way, there's small variations of these.

Depends on different casinos, different rules they have.

But if you don't know how to count cards, and you memorize what to do with each hand against every single combination of the dealer's hand, you will minimize your loss in blackjack down to around 60 cents per $100.

Rtut Chris, I'm not gonna ask how to do it, but how does card counting work?

The principle of card counting is really around tracking how much face cards and aces are left.

And the rationale is that when there are more aces, there's a higher chance of either the player or the dealer hitting blackjack.

Except in most casinos, if the player hit blackjack, they get paid a time and a half.

When the dealer hit blackjack, they just get your money, right?

So because you have that time and a half advantage, when there's higher odds to hit blackjack, player has an edge.

And two, the rule of blackjack, the dealer has to hit their hand until 17.

When there's a lot of face cards left in the shoe, the dealer will bust more often.

ADS69, why do casinos kick you out when you do card counting?

In the state of New Jersey, casinos are not allowed to kick players out.

So they have other means of ruining the game for us.

So for example, in the game of blackjack, they will put the cut cards way up in the front so that you basically cannot possibly count and win.

Some casino, we use what's called continuous shuffle machine where they have a machine that shuffle the card continuously.

In those situation, there's really no way you can beat the casino.

Why do casinos have table limits if the odds are in their favor?

Table limits are set up to bust a particular type of algorithm called the martingale algorithm.