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Most roulette players know to seek out the European single-zero wheel over the American double-zero version, but fewer realise there are two special rules that can shave the house edge even further. La partage and en prison are continental refinements that soften the blow when the ball lands on zero, and they apply specifically to the even-money bets. For anyone who favours red or black, odd or even, or high or low, these rules can meaningfully improve the odds. Understanding how they work, and where to find them, is one of the smarter pieces of roulette knowledge you can carry. This guide explains both rules in plain terms.
The Problem the Zero Creates
The green zero pocket is the source of the house edge in roulette. When you bet on red and the ball lands on zero, your bet loses outright, even though zero is neither red nor black. This single pocket tilts every even-money wager slightly against you. On a standard European wheel the house edge on these bets sits at around two point seven per cent. La partage and en prison both exist to reduce the sting of that zero specifically for even-money bettors, giving back a portion of what the zero would otherwise take.
How La Partage Works
La partage, meaning sharing in French, is the simpler of the two rules. When you place an even-money bet and the ball lands on zero, you lose only half your stake rather than the whole thing. The other half is returned to you immediately. This straightforward refund halves the effective house edge on even-money bets, bringing it down to roughly one point three five per cent. There is no further decision to make and no complication, you simply get half your money back whenever the dreaded zero appears. It is a clean, player-friendly rule.
How En Prison Works
En prison, meaning in prison, achieves a similar result through a different mechanism. When the ball lands on zero, instead of losing your even-money bet, it is locked or imprisoned on the table for the next spin. If that following spin wins, you recover your original stake in full, though without any additional winnings. If it loses, the bet is gone. In effect, en prison gives your trapped bet a second chance rather than an immediate half-refund. Over the long run it produces a house edge very close to that of la partage.
Comparing the Two Rules
Both rules deliver roughly the same long-term benefit, cutting the even-money house edge to around one point three five per cent. The practical difference is in how it feels and how quickly it resolves. La partage settles instantly with a half-refund, which many players prefer for its simplicity. En prison stretches the resolution across an extra spin, adding a touch of drama and a binary outcome. Some variations of en prison even allow the bet to be imprisoned multiple times in a row, though this is less common. Either way, the mathematical advantage to the player is broadly equivalent.
These rules show how much the fine print matters, and the same attention to detail rewards reel players too, which is why the thunder empire pokies game appeals to those who like to understand their odds. The thunder empire pokies have no la partage equivalent, but knowing the features matters, and roulette fans often keep thunder empire for real money open between wheel sessions. Admirers of aristocrat thunder empire appreciate that the thunder empire game lays out its mechanics plainly, though the core lesson carries across: every thunder empire casino round, like every roulette spin, runs on fixed odds you should understand before you bet.
Where to Find These Rules
La partage and en prison are most commonly associated with French roulette, the continental cousin of the European game, though some European tables offer them too. They apply only to the even-money outside bets, never to the inside bets on individual numbers or small groups. Not every table includes them, so it pays to read the rules before you sit down. When you do find a table offering either rule on a single-zero wheel, you are playing one of the most favourable roulette variants available anywhere.
Making the Most of the Edge Reduction
To benefit from these rules you must stick to the even-money bets, since that is the only place they apply. A player who scatters chips across single numbers gains nothing from la partage or en prison. If your style already leans toward backing red or black, seeking out a table with one of these rules is a genuine and effortless way to improve your odds. It will not turn roulette into a winning game over time, but it meaningfully narrows the gap between you and the house.
Smart Roulette Choices
Roulette will always favour the house, but the smart player minimises that edge through informed choices. Pick a single-zero wheel, seek out la partage or en prison when you can, and concentrate on the even-money bets to enjoy the reduced edge. Combine that with a firm budget and the discipline to walk away, and you are playing the game as cleverly as it can be played. These small rules will not make you rich, but they show that knowledge genuinely pays at the roulette table.