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La Partage vs. En Prison: Understanding These Key Roulette Rules

Playing roulette in a casino

For enthusiasts of roulette, particularly European and French variations, understanding specific rules like La Partage and En Prison is crucial.

Unraveling La Partage and En Prison in Roulette

These rules are designed to mitigate losses on even-money bets when the ball lands on zero, significantly influencing the house edge and player strategy. While they share a common goal of offering players a second chance, their mechanics and implications differ.

How La Partage Works

The La Partage rule is a cornerstone of many French roulette tables. Its principle is straightforward: if a player places an even-money bet (such as Red/Black, Odd/Even, or High/Low) and the ball lands on zero (0), the player loses only half of their wager. The other half is returned to them.

This rule effectively reduces the house edge on these specific bets. Instead of losing the entire stake to the house when zero appears, players retain 50% of their bet, making these wagers more appealing.

  • Applies to even-money bets only.
  • Player loses half their stake when zero hits.
  • Half of the bet is returned.
  • Commonly found on French roulette tables.

How En Prison Works

The En Prison rule, also prevalent in French roulette, offers a slightly different mechanism when the zero hits. Instead of returning half the bet immediately, the player's even-money bet is "imprisoned" for the next spin.

  1. If the subsequent spin results in a win for the imprisoned bet, the player's original stake is returned, without any additional winnings.
  2. If the subsequent spin results in a loss, or if zero hits again, the entire imprisoned bet is lost.

Some variations of En Prison may allow for multiple "imprisonments" if zero hits consecutively, but this is less common and depends on the specific casino's rules.

  • Applies to even-money bets only.
  • Bet is "imprisoned" for the next spin when zero hits.
  • If the imprisoned bet wins on the next spin, the original stake is returned.
  • If the imprisoned bet loses or zero hits again, the entire bet is lost.

Similarities Between La Partage and En Prison

Despite their operational differences, La Partage and En Prison share fundamental similarities that benefit players focusing on even-money wagers:

  • Both rules apply exclusively to even-money bets (Red/Black, Odd/Even, High/Low).
  • Both rules come into play only when the ball lands on zero (0).
  • Both aim to reduce the player's losses when the zero appears, effectively lowering the house edge on even-money bets compared to standard European roulette without these rules.
  • They are primarily found in European and French roulette variations, distinguishing them from American roulette, which typically has a higher house edge due to the presence of both 0 and 00, and lacks these protective rules.

Differences Between La Partage and En Prison

While their objective is similar, the practical application of La Partage and En Prison presents clear distinctions that affect gameplay and immediate outcomes:

    • Immediate Outcome vs. Delayed Resolution: With La Partage, the resolution is immediate: half your bet is returned. With En Prison, the resolution is delayed, requiring another spin to determine the fate of your wager.
    • Risk Exposure: La Partage offers a guaranteed return of half your stake, limiting your immediate loss. En Prison keeps your entire bet at risk for an additional spin, meaning you could still lose the full amount if the next spin doesn't favor your imprisoned bet.
    • Decision Making: La Partage offers a more straightforward outcome. En Prison introduces a moment of anticipation and a renewed chance to recover the full original stake, but also the risk of losing it all on the subsequent spin.

    Impact on House Edge

    The presence of La Partage or En Prison significantly impacts the house edge on even-money bets in roulette.

    In standard European roulette, the house edge on all bets is approximately 2.70%. When La Partage or En Prison is applied to even-money bets, the effective house edge for these specific wagers is halved to approximately 1.35%.

    This makes these rules highly desirable for players looking to optimize their roulette strategy and improve their long-term odds.

    Choosing Your Roulette Table

    When selecting a roulette table, especially in an online setting, it's beneficial to look for tables that explicitly state the inclusion of La Partage or En Prison rules. These variations offer a more player-favorable environment for even-money bets.

    While both rules reduce the house edge by half on these specific wagers, your personal preference for immediate resolution (La Partage) versus a second chance (En Prison) might guide your choice of table.


    Conclusion

    Both La Partage and En Prison are invaluable rules for roulette players, particularly those focusing on even-money bets in European and French variations. While La Partage offers the immediate return of half your stake, En Prison provides a thrilling second chance to recover your entire wager.

    Understanding these differences allows players to make informed choices, select tables that align with their preferred level of risk and pacing, and ultimately, enjoy a more favorable house edge, enhancing their overall roulette experience.

    Frequently asked Questions

    💰 What is the primary benefit of playing roulette with La Partage or En Prison rules?

    The main advantage of these rules is that they significantly reduce the house edge on even-money bets. In standard European roulette, the house edge is around 2.70%. However, when either La Partage or En Prison is in effect, this house edge is effectively cut in half for bets like red/black, odd/even, or high/low, bringing it down to approximately 1.35%. This means that over time, players are expected to lose less money on these specific types of wagers, making the game more favorable for those who prefer to bet on broader outcomes.

    ❔ Are La Partage and En Prison rules available in all roulette variations?

    No, these beneficial rules are not universally available. They are predominantly found in European and especially French roulette variations. You will rarely, if ever, encounter them in American roulette, which features both a single zero (0) and a double zero (00), leading to a higher house edge. Therefore, if you are looking to take advantage of La Partage or En Prison, it is essential to seek out tables specifically offering European or French roulette.

    👌 Does the outcome of an "imprisoned" bet affect my other bets on the table?

    No, the outcome of an "imprisoned" bet under the En Prison rule is isolated to that specific wager. If your even-money bet is "imprisoned" after a zero, the wheel is spun again to determine the fate of that bet. Any other bets you might have placed for the subsequent spin are completely separate and their outcomes are unaffected by the resolution of the imprisoned bet. It simply means one specific wager is given a second chance, while all other new bets proceed as normal.

    ✅ Can I choose between La Partage and En Prison on the same roulette table?

    Generally, a roulette table will implement either La Partage or En Prison, but not both simultaneously with a choice for the player on every zero outcome. Some casinos might offer a French roulette table where the La Partage rule is the default, but they might also offer the option for a player to "imprison" their bet instead of taking half back. This flexibility is less common, so it is always wise to check the specific rules of the table you are playing at before placing your bets.

    💲 Why do some casinos offer these rules while others do not?

    Casinos choose whether to offer La Partage or En Prison based on their business model and the desired house edge. While these rules are more player-friendly by reducing the house advantage on even-money bets, they also mean less profit for the casino on those specific wagers. European and French roulette, with their single zero, already have a lower house edge than American roulette, and the addition of La Partage or En Prison further reduces it, appealing to players who are strategic about their betting. Casinos often use these rules as a competitive advantage to attract players who seek better odds.

    Denis Anipchenko
    Denis Anipchenko
    Editor-in-chief and online gambling expert

    Denis is a true professional with many years of experience in the gambling industry. His career started back in the late nineties when he worked as a croupier, pit boss, manager and casino manager. This unique experience allowed him to deeply understand the world of gambling from the inside. Since the late noughties Denis has dedicated himself to writing articles and analyses about gambling, and since the early tens he has become a key figure in the Casinoz team. Here he not only writes and edits content, but also creates reviews, shares his expertise and helps readers understand the intricacies of gambling. Denis combines practical experience and in-depth knowledge, making him one of the most respected experts in the industry. His writings are always up-to-date, proven and useful information for anyone interested in the casino world.

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