{{short description|Roulette bet}} {{Italic title}} In roulette, the '''''en prison'' rule''' is an opportunity to recover one's stakes after a spin of zero, provided one's bet was even-odds (i.e. high–low, even–odd, red–black).<ref name="wizardofodds"> {{cite web |url=http://wizardofodds.com/roulette |title=Roulette |publisher=Wizard Of Odds Consulting |accessdate=2009-09-28}} </ref> It is a variant of the '''''la partage'' rule''', in which a player loses only half their even-odds stake if the original spin is a zero, recouping the other half<ref name="wizardofodds"/> (''partage'' being French for "sharing"). In European casinos, where ''la partage'' is customary, the player may be given the option instead to place their original stake ''en prison'' ("in prison" in French).<ref name="wizardofodds"/> The stake is left on the previous bet, and the croupier places a marker on it to show it is ''en prison''.<ref name="wizardofodds"/> If the bet wins on the next spin, the player's stake is returned; if it loses, it is forfeited.<ref name="wizardofodds"/> Different casinos adopt different rules for the case where zero comes up a second time: it may be treated as won, lost, ''la partage'' or ''en prison''.<ref name="wizardofodds"/><ref>{{Cite web|url=https://www.casino.info/resources/roulette-en-prison-rule/|title=Roulette En Prison Rule|date=May 22, 2020|website=Casino.info Resources}}</ref>
The 'La Partage' version of Roulette is more favorable towards the player when compared to the standard American and European Roulette Games. It has a payout percentage of 98.65%, which means the house edge is 1.35%, but this is only the case when the player is betting on a two-sided outside bet.<ref>{{cite web |title=French Roulette - Rules, Payout, Strategy |url=https://random-wheel.com/roulette |website=rouletteFever }}</ref>
Most Casinos in the United States do not use ''la partage'' or ''en prison'' rules; an even-odds stake loses if zero is rolled.<ref name="wizardofodds"/> Those that do include these Las Vegas Casinos: The Bellagio, MGM Grand, The Mirage, The Rio and The Wynn.<ref>{{Cite web |title=Las Vegas Hotels on the Strip {{!}} Best Las Vegas Strip Hotels {{!}} MGM Resorts |url=https://www.mgmresorts.com/en/las-vegas-hotels.html? |access-date=2023-05-13 |website=www.mgmresorts.com |language=en}}</ref>{{cn|date=May 2020}}
At some casinos, there is a further twist to the En Prison rule: a "second spin zero" rule. If the ball lands in the zero again (so twice in a row), the bet remains "en prison".<ref>{{cite web|title=roulette Strategies|url=https://roulette77.co.uk/strategies|date=May 13, 2021}}</ref>
==See also== * Double or nothing
==References== {{reflist}} Category:Roulette and wheel games Category:French words and phrases Category:Gambling terminology
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