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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).〔 (【引用サイトリンク】title=Roulette ) 〕 It is a variant of the ''la partage'' rule, in which a player loses only half his even-odds stake if the original spin is a zero, recouping the other half〔 (''partage'' being French for "sharing"). In European casinos, where ''la partage'' is customary, the player may be given the option instead to place his original stake ''en prison'' ("in prison" in French).〔 The stake is left on the previous bet, and the croupier places a marker on it to show it is ''en prison''.〔 If the bet wins on the next spin, the player's stake is returned; if it loses, it is forfeited.〔 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''.〔 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 (98.5% ) Most Casinos in the United States do not use ''la partage'' or ''en prison'' rules; an even-odds stake loses if zero is rolled.〔 Those that do include these Las Vegas Casinos: The Bellagio, MGM Grand, The Mirage, The Rio and The Wynn. ==See also== * Double or nothing 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「En prison」の詳細全文を読む スポンサード リンク
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