D'Alembert Strategy

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By Lars Wahlström - Updated 2023-09-13

Reading Time: 7 minutes

D'Alembert Strategy

The D'Alembert strategy is a popular betting system many casino enthusiasts use, particularly in roulette. Developed by French mathematician Jean le Rond D'Alembert, this strategy is easy to learn and apply, providing players with an exciting and engaging gambling experience.

The system is based on even-money bets, where players increase their wager by one unit after a loss and decrease it by one unit after a win. This approach balances gains and losses for a more controlled gaming experience.

The United Kingdom, known for its vibrant casino culture, offers various venues where gamblers can test their skills and luck using the D'Alembert strategy. Many land-based and online casinos boast roulette games catering to players of all skill levels. In addition, these casinos prioritize fair play and responsible gaming practices, ensuring a safe and enjoyable experience for users.

Consider game availability, casino bonuses and promotional offers, and customer support quality to find the best casino for your specific needs and preferences. Look for establishments that offer a diverse range of roulette games, enabling you to practice with the D'Alembert strategy and maybe even improve on it.

By selecting the right online casino to match your desired playing experience, you can embark on a thrilling gambling adventure while employing the tried and tested D'Alembert betting system.

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Understanding D'Alembert Strategy

Origins and Theory

The D'Alembert strategy is named after its creator, French mathematician Jean-Baptiste le Rond d'Alembert. He introduced the concept in the 18th century, originally focusing on even-money bets such as coin tosses. Its premise is based on increasing or decreasing bet amounts by a single unit after each win or loss, respectively.

D'Alembert reasoned that after a series of bets, the number of wins and losses would eventually increase, leading to profits by consistently adjusting stakes. It's important to note that despite the strategy's popularity in casinos, D'Alembert's initial argument about a better chance for head or tail after a series of losses was incorrect.

Pros and Cons


  • Simplicity: The D'Alembert strategy is easy to understand and implement, making it suitable for beginners in casino games.
  • Minimal risk: Pronounced fluctuations in bet sizes are unlikely, reducing the potential for massive losses, unlike other betting systems like the Martingale.


  • Slower profit growth: The D'Alembert strategy tends to generate profits slowly compared to other strategies.
  • Imbalance in outcomes: While the original theory posits an equal number of wins and losses over time, reality often deviates from this by producing an imbalance in outcomes.
Pros and Cons

Application in Casino Games

The D'Alembert strategy best suits games with even-money bets, such as Roulette or Baccarat. When applied to Roulette, a player would increase their bet by one unit after a loss and decrease after a win. For example, with £1 increments:

  • Bet £1 and lose → Increase by one unit → Bet £2
  • Bet £2 and win → Decrease by one unit → Bet £1

Here's a brief comparison table between D'Alembert and Martingale's strategies:

StrategyIncrease/DecreaseBet Amount Limit
D'Alembert+1/-1 unitFewer limits
MartingaleDouble/HalveLarger limits

Remember that no betting strategy guarantees profits or immunity from losses. D'Alembert is simply a tool to manage your bankroll and bring some structure to your betting experience.

Use the D'Alembert strategy responsibly and adjust it according to the specific rules and betting limits of the casino games you choose to play.

Best British Casino Choices

Top Online Casinos

When looking for the best casinos to apply the D'Alembert strategy, consider the following top online casinos:

  • Videoslots: Known for its wide range of games, user-friendly interface, and excellent customer support.
  • LeoVegas: Offers a variety of table games and slots along with generous bonuses.
  • PlayOJO: Boasts high-quality graphics, a diverse game selection, and fast payout options.

Criteria for Selection

To ensure a great gaming experience while using the D'Alembert strategy, consider these factors when selecting an online casino:

  • Game variety: Look for casinos that offer a diverse selection of games, including roulette, where you can apply the D'Alembert strategy.
  • Licenses and regulation: Choose licensed and regulated casinos by reputable authorities, such as the Kahnawake Gaming Commission or the Malta Gaming Authority.
  • Security and safety: Ensure the casino uses SSL encryption and follows strict privacy policies to protect your personal information.
  • Customer support: Opt for casinos with responsive and helpful customer service, available 24/7 through multiple channels, such as live chat, phone, and email.

Additional Features

In addition to the above criteria, consider these extra features when selecting an online casino:

  • Payment options: Look for casinos that support various payment methods, such as credit cards, e-wallets, and bank transfers, to ensure convenient and secure transactions.
  • Bonuses and promotions: Enjoy generous welcome bonuses and ongoing promotions, enhancing your gaming experience and providing additional value.
  • Mobile compatibility: Choose an online casino compatible with various devices, including smartphones and tablets, allowing you to play on the go.
Best Casino Choices

Implementing D'Alembert Strategy Casinos in the United Kingdom

Game Selection

The D'Alembert strategy suits even-money bets in games like roulette, blackjack, and baccarat. When selecting your game, look for the following options in casinos:

  • Roulette (preferably European or French versions to minimize the house edge).
  • Blackjack (with favourable rule variations).
  • Baccarat (choose the version with lower commission rates).

Remember that no strategy can change the house edge, but combining sound game selection with D'Alembert can give you the best chances of succeeding.

Practice and Refinement

Before implementing the D'Alembert strategy in a real-money setting, practising your chosen game using free or demo versions available at casinos is crucial. This approach allows you to:

  • Gain a deeper understanding of the rules and gameplay.
  • Familiarize yourself with the betting interface.
  • Test various scenarios, which will better prepare you for the real thing.

Refine your skills by adjusting your betting plan based on your performance during practice sessions. Stick to a consistent bankroll management strategy and follow the D'Alembert progression prudently.

Managing Risk and Rewards

A crucial aspect of using D'Alembert effectively lies in managing your risks and rewards. Here are some tips to keep in mind:

  • Set a pre-defined loss limit and stick to it religiously.
  • Start with small bets and adjust them according to the D'Alembert progression.
  • Take breaks and walk away when necessary to remain focused and disciplined.

Remember that the D'Alembert strategy relies on the premise that wins and losses will even out over time. By managing risk and rewards, you can maximize your chances of enjoying successful gaming sessions at casinos.

Implementing D'Alembert Strategy


The D'Alembert strategy is a straightforward and easy-to-follow betting system that can benefit beginners in the gambling world. Simply adding 1 when you lose and subtracting 1 when you win is less likely to infringe upon the maximum betting limit of a table and requires a more modest bankroll to get started.

However, remember that while this system may give you a higher chance of making smaller gains, it does not guarantee consistent winnings or protect against losses.

When searching for the best casinos to try the D'Alembert strategy, consider the following factors:

  • Casino Reputation and licensing.
  • Game selection, specifically those that are compatible with the D'Alembert system, such as roulette or baccarat.
  • Bonuses and promotions for new and existing players.
  • Safe and secure payment methods with fast processing times.

Being cautious and well-informed will help you maximize your casino experience using the D'Alembert betting system. Remember to practice responsible gambling and never bet more than you can afford to lose.


What is the D'Alembert strategy?

The D'Alembert strategy is a negative progression betting system that aims to help players recover losses and make a profit. It is based on the principle that after a loss, the chances of winning increase, and vice versa. In this strategy, you increase your bet by one unit after each loss and decrease it by one unit after each win.

Does the D'Alembert strategy guarantee a profit?

No, like any betting system, the D'Alembert strategy does not guarantee a profit. It can be effective in managing losses and providing a more structured approach to betting. However, it is important to understand that the outcome is still determined by chance, and winning or losing streaks can still occur.

Should I use the D'Alembert strategy?

The decision to use the D'Alembert strategy ultimately depends on personal preference. Some players find it appealing as it provides a structured approach to betting and helps manage losses. However, it is crucial to remember that no betting strategy can guarantee consistent profits, and gambling should always be done responsibly.




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