Gioco d’azzardo facile ma affascinante, la roulette ha catturato l’attenzione di molti giocatori di casinò in tutto il mondo. Anche se non sono richieste particolari conoscenze e abilità, i potenziali profitti superano di gran lunga quelli di giochi come il blackjack. I giocatori di roulette spesso si concentrano sui numeri, credendo che alcuni siano fortunati, mentre altri dovrebbero essere evitati.
Allora, quali sono i numeri migliori sul tavolo della roulette? Alcune scommesse sono migliori di altre? C’è un modo per essere sicuri di vincere ogni volta? Le risposte a queste domande possono sorprendere molti giocatori. In questo articolo cercheremo di spiegare alcuni degli aspetti più importanti del gioco della roulette e di sfatare i miti ampiamente diffusi sui numeri.
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Numeri fortunati della roulette e altre leggende
It is no secret that roulette players tend to favor certain numbers over others. Countless superstitions surround the numbers in this game, and most of them are as old as roulette itself. One of the most intriguing facts is that the sum of all the numbers on a roulette wheel (0 to 36) equals 666, known as “the number of the beast,” the Devil’s number often linked to the end times in Christian beliefs.
Number theory in roulette, however, is not based purely on superstition. Many players believe they can gain an edge by spotting biased wheels and manufacturing flaws, identifying numbers that are more likely to hit on a specific table.
Numeri fortunati
Everyone has a lucky number, but for gamblers the belief that certain numbers possess cosmic power over people and events reaches a whole new level. The number 17 is arguably the most famous spot on the roulette layout: it sits in the middle of the betting grid and has become legendary over the years. Countless stories tell of players winning eye-watering sums after staking everything on 17.
One such story involves Sean Connery, the iconic James Bond actor, who reportedly won €27,000 with three successful bets on 17. In 1963 Connery was playing at Casino de la Vallée in Saint-Vincent, Italy. He placed a bet on 17 and lost, repeated the wager and lost again, but tried a third time and won. Incredibly, he left the bet on 17 for two more spins, won both, and walked away with an impressive €27,000 profit.
Another remarkable 17 tale comes from the United Kingdom. Mike Ashley, owner of Newcastle United FC, won almost £1.3 million in a single spin with a complete bet on 17. A complete bet covers every possible combination that includes the chosen number, and Ashley’s total stake was £480,000. In his case that meant 17 separate bets (another coincidence?) that returned about £1.284 million.
Other popular roulette numbers include 7 and 3, while 8 is viewed as lucky and prosperous in Chinese culture. The number 13, on the other hand, is considered unlucky in many parts of the world, so much so that hotels often skip room 13 and go straight from 12 to 14.
Numeri caldi e freddi
Another hugely popular idea in casinos is betting on “hot” or “cold” numbers. Hot numbers are simply those that have appeared more frequently, while cold numbers have not hit for a while. Some players like to back hot numbers, others seek out cold ones and wager on them, believing that cold numbers are “due” because every number on the wheel should win once every 37 spins on average.
Roulette wheels, however, like every game of chance, are governed by probability, and probability works differently. Even though there are 37 possible outcomes on each spin, that does not mean every outcome will show up within 37 spins. Far from it. Some numbers may not appear at all, while others could hit three, four, or more times. Players need to remember that every number carries the same probability of landing and that each spin is independent of the results that came before.
Route di parte
Many legendary roulette players from the past are believed to have used a simple tactic to gain an edge over the casino: exploiting biased wheels. In earlier times roulette tables were manufactured very differently and often had various defects and imbalances. Today, production processes have improved dramatically, and roulette wheels, tables, and all of the mechanics have only minimal imperfections.
Because of natural wear and tear, wheels can still become biased, meaning the ball might be more likely to land in certain sections. Casinos are aware of this, which is why they now replace wheels and any other equipment that might wear out or become damaged on a regular basis. As a result, taking advantage of such imperfections is almost impossible, even for seasoned players. When it comes to online roulette, of course, the concept does not apply at all.
Roulette RNG
Unlike the physical roulette found in land-based casinos, virtual roulette games use a random number generator. This is software that, through complex algorithms, produces random outcomes. RNG technology is widely used in computer programming, cryptography, simulations, and many other fields. Roulette games that rely on RNG are completely random and as close as possible to real-world entropy.
These games are not only fair but also impossible to predict unless you have access to the game’s source code and the casino’s systems. As you can imagine, that is highly unlikely, which is why RNG roulette is considered random and unpredictable. As explained above, every number has the same chance of appearing: in single-zero roulette it is exactly 0.0270 (1/37), meaning that in each spin each of the 37 numbers is expected to win 2.70% of the time.
Ci sono numeri buoni e cattivi sul tavolo della roulette?
Looking at the odds, we can clearly see that there are no “good” or “bad” numbers on the roulette table. As we have already pointed out, every number has the same chance of winning or losing. But what about the various betting options in the game? Besides wagering on a single number, players can also bet on two, three, or more numbers at the same time. Is this a better long-term strategy? Yes and no.
Quote della roulette
To decide whether there are good and bad bets in roulette, players first need to understand the odds. As noted earlier, the probability of hitting a single number is 1/37 (1/38 on American wheels). Odds convey essentially the same idea, the likelihood of winning a bet, but they are used to compare the chance of winning with the chance of losing.
For example, the odds of landing a single number are 1 to 36 because we have one winning outcome and 36 losing outcomes. Odds are usually expressed as “odds against,” so the straight-up bet carries odds against of 36 to 1. The odds against winning an even-money bet such as red or black are 19 to 18, or 19:18 (1.0556:1). The probability for the same wager is 18/37, or 0.4864.
Margine della casa
When evaluating different casino games, we can identify those with a better expected value by calculating their house edge. The house edge shows the amount a player can expect to lose on average relative to their wagers. This edge, also called the casino advantage, exists in every casino game and ensures the casino will always make a profit. In roulette the house edge stays the same across all bet types. We can see this clearly by using the expected-value formula:
(Expected loss × ways to lose) + (Expected win × ways to win)
To find the expected value for a straight-up bet on single-zero roulette we calculate (-1 × 36/37) + (35 × 1/37), which equals -0.0270. Turning this into a percentage requires multiplying the result by 100, giving us a house edge of 2.70%. For an even-money bet the equation is (-1 × 19/37) + (1 × 18/37), which is -0.0270, again a 2.70% house edge. This means that if we wager €100 on the game, we can expect to lose an average of €2.70.
Potenziale di vincita e di profitto
It is important to distinguish between the chance of winning a roulette bet and its profitability. As mentioned, even-money wagers have a probability of 0.4864. In other words, red, for example, is expected to win 48.64% of the time, so if we keep placing this bet our chances are almost fifty-fifty. This wager offers the highest likelihood of winning in roulette (along with the rest of the outside even-money bets). In contrast, each individual number is expected to come up only 2.70% of the time.
Does that mean even-money bets are the most profitable? No. The reason is the even payout—red/black, low/high, and even/odd pay 1:1, meaning players receive a return equal to their stake. Straight-up bets offer the highest payout at 35 to 1. When we compare the payout with the odds of winning (36 to 1), however, the risk is slightly higher than the potential reward. The 2.70% house edge makes the same point clear, no matter which bet we place in roulette, we will lose an average of 2.70% of our total stake.
Players should therefore decide for themselves which tactic they prefer: rely on small but frequent wins, or take more risk for the chance to win big. Most experts recommend sticking to low-risk play and betting on wagers with a higher probability of hitting. Placing riskier bets from time to time, however, makes the game far more exciting.
Tattiche popolari per migliorare le possibilita' di vincita
Scommesse chiamate/annunciate
Schemi di scommessa
Sistemi di scommesse progressive
Some players prefer to bet on specific sections of the wheel rather than on the betting layout. This tactic is especially popular in land-based casinos and among those who believe they can exploit a biased wheel. After spotting a hot number or several hot numbers located next to one another on the wheel, they assume there might be an imperfection in the wheel or table. According to this theory, the ball will land on one side of the wheel more often.
Betting on adjacent or nearby numbers is possible with the so-called racetrack layout, which is usually offered in European and French-style roulette games. There, players can wager on up to 17 numbers located within one section of the wheel. These wagers are known as Call or Announced Bets and include Voisins du zéro (17 numbers), Tiers du cylindre (12 numbers), Orphelins (8 numbers) and Jeu zéro (7 numbers). Neighbor Bets, on the other hand, allow you to back a single number and its neighboring numbers, usually up to five on each side.
Before placing these bets, players should understand that they must stake multiple chips on each, which means they can be quite expensive. Calculating the odds is more complicated because you are combining several wagers into one. For this reason, Call Bets should be placed cautiously, especially by beginners or players with a small bankroll.
Vedi di più...The practice of using betting patterns is not unique to roulette; combining different types of wagers to boost your chances of winning can be seen in many gambling games. A good example of a roulette betting pattern is the combination of an even-money bet with an inside bet or several inside bets. The options are endless: for example, you can bet on black along with the splits 16–19 and 18–21. In this way you place three chips and cover 22 numbers, which is more than half the wheel, exactly 59.46%.
In fact, many players like to combine even-money bets with higher-payout wagers such as splits or corner bets. Some online roulette games let you place black or red splits, meaning split bets on every adjacent black or red number on the main layout. Again, it is essential to use a money-management plan and never wager more than you can afford to lose in a single spin. This is particularly important with these combinations because of their cost.
Vedi di più...We have already touched on progressive roulette systems. They are not full strategies, but methods for adjusting your bet size based on expectations for future spins. For example, the Martingale, a negative progression, requires you to double the wager after every loss. There are also positive progressions, which increase the bet after a win and decrease it after a losing round.
These systems are used with even-money bets; players usually keep placing the same type of wager for the entire session. However, basing your approach on past results makes little sense in roulette because every spin of the wheel is an independent event. It is not linked to previous spins and cannot affect those that follow. For this reason, betting progressions are imperfect.
Vedi di più...Errori da evitare
A successful roulette strategy combines a solid money-management plan with the right types of bets. It is also essential for players to recognize the mistakes they make and avoid them whenever possible. We have already touched on a few myths and misconceptions about roulette, but there are several other points to consider.
Attenersi ai numeri che sono destinati a vincere
This is a common mistake made by beginners and superstitious players who believe in hot and cold roulette numbers. Many of them notice that a particular number has not hit for a long time and assume it is now “due.” For example, if 15 has not landed for a while, we might think it is bound to win in the next few spins.
That assumption is wrong: 15 could fail to appear for another 50 spins. Betting on it does not guarantee a win. In fact, if you keep backing number 15 you will probably lose a lot of money, especially if you are placing straight-up bets on it. As we established earlier, such wagers have a low probability and are expected to win only 2.70% of the time.
Affidarsi a sistemi progressivi
Another major error inexperienced roulette players often make is relying on progressive betting systems. Using such systems may seem interesting for a while, but mathematical analysis shows that they lead to losses or, at best, small profits generated over a very long period. Some systems, such as the aggressive Martingale mentioned above, can result in significant financial losses. If players want to apply bet progression, they should opt for low-risk systems that increase the stake gradually rather than doubling it after each spin.
Credenze e serie perdenti/vincenti
This is probably one of the most popular ways to explain coincidences in gambling. Many people believe they should stop playing when they encounter a losing streak, and it is also commonly thought that you should raise the stakes once you start winning. This approach is dangerous because it is based on a fundamentally incorrect idea, namely that future roulette outcomes are somehow connected to past results.
Winning and losing streaks do occur. What players need to understand is that streaks are random and can only be observed and analyzed after the fact. They should not be used as the basis for future wagers.


