Betcha la Okwera / Otsika la Roulette
1–18 (otsika, manque) kapena 19–36 (okwera, passe).

Amalipira 1:1, kuthekeramasamuKuthekeraMwayi wa zotsatira, kuchokera 0 mpaka 1 kapena 0% mpaka 100%. Nambala imodzi: 1/37 = 2.70%.Werengani yonse → 48.65%.
Kaikidwe
Mabokosi a “1–18” ndi “19–36” kumapeto awiri a mzere wakunja. Pa dongosolo la mabetchazipangizoDongosolo la mabetchaGridi yosindikizidwa yobetchera pa tebulo. Imatchedwanso: tebulo, felt, nsalu.Werengani yonse → la ku France amalembedwa manque (“kusowa”: mpirazipangizoMpiraMpira waung’ono umene umaponyedwa mu njira motsutsana ndi rotor. Mipira yamakono ndi ya ivorine kapena Teflon, 18–21 mm.Werengani yonse → unalephera kupitirira 18) ndi passe (“kupitirira”: unapitirira). Lililonse liyenera kufika malire ochepa a tebulo.
Mwayi ndi malipiro a 1–18 ndi 19–36 mu roulette
Zofanana ndendende ndi zofiirabetchaZofiiraBetcha la even-money pa manambala 18 ofiira. Mu Chifalansa: rouge.Werengani yonse →/zakudabetchaZakudaBetcha la even-money pa manambala 18 akuda. Mu Chifalansa: noir.Werengani yonse → ndi osakhala awiriawiri/awiriawiri: mwayi wachilungamo 1.056 ku 1, tebulo limalipira 1, phindu la kasino 2.70%, kapena 1.35% ndi la partagelamuloLa partageLamulo la ku France: ziro ikatuluka, theka la ndalama zobetcha pa even-money limabwezedwa. Limachepetsa phindu la kasino ndi theka pa mabetcha amenewo kufika 1.35%.Werengani yonse →.
Pa gudumu
Manambala okwera ndi otsika amasinthana m’mphepete mwa gudumu pafupifupi mwangwiro, choncho betcha ili siliphimba gawogudumuGawoMndandanda wolumikizana wa tibowo pa gudumu, mosiyana ndi gulu pa dongosolo la mabetcha.Werengani yonse → lililonse; ndi gulu la pa dongosolo la mabetcha lokha. Poyang’ana ndondomeko kuchokera pa zirogudumuZiroKabowo kamodzi kobiriwira kamene betcha la even-money, dazeni kapena mzati siliphimba; gwero la phindu la kasino. Imatchedwanso: ziro imodzi, 0.Werengani yonse →: 32 (okwera), 15 (otsika), 19 (okwera), 4 (otsika), 21 (okwera), 2 (otsika) ndi zina zotero.

Malipiro a 19–36 mu roulette pa mazungulidwe 37
Pa $10 pa kuzungulira kulikonse, betcha la 19–36 limapambana nthawi 18 pa mazungulidwe 37 a avareji (+$180), limaluza ku manambala khumi ndi asanu ndi atatu otsika (−$180) ndipo limaluza ku ziro kamodzi (−$10): −$10 pa $370 zobetchedwa. Pa gudumu la ziro ziwiri, ziro ziwirizo zimawononga $20 pa $380, 5.26%. Ziro ndi yotsika kuposa 1 komabe imaluzitsa betcha la otsika: bokosi limati 1–18.
Kuphatikiza
Okwera kuphatikiza dazenibetchaDazeni1–12, 13–24 kapena 25–36, amalipira 2:1.Werengani yonse → lachitatu zimadutsana pa manambala onse khumi ndi awiri a 25–36, choncho ndi betcha lolemeretsedwa pa 19–36 ndi dazeni lapamwamba lophimbidwa kawiri. Otsika kuphatikiza zofiira zimadutsana pa manambala asanu ndi anayi. Palibe kuphatikiza kulikonse kumene kumasintha mtengo woyembekezekamasamuMtengo woyembekezekaZotsatira zapakati pa betcha lililonse pa nthawi yayitali. −1/37 ya ndalama zobetcha pa betcha lililonse la ku Ulaya wamba.Werengani yonse →; gawo lililonse ndi 2.70% palokha.
Zomwe zili m’theka lililonse
Theka lililonse lili ndi manambala asanu ndi anayi ofiira ndi asanu ndi anayi akuda, ndi asanu ndi anayi osakhala awiriawiri ndi asanu ndi anayi awiriawiri. Manambala ofiira ndi 1, 3, 5, 7, 9, 12, 14, 16 ndi 18 m’theka lotsika ndi 19, 21, 23, 25, 27, 30, 32, 34 ndi 36 m’theka lokwera. Otsika ndi dazeni loyamba ndi theka la lachiwiri; okwera ndi theka lina la lachiwiri ndi lachitatu. Palibe betcha laling’ono limene limaphimba 1–18 motsika mtengo: dazeni limalipira 2 ku 1 pa manambala khumi ndi awiri, six linebetchaSix lineManambala asanu ndi limodzi m’mizere iwiri yoyandikana, amalipira 5:1. Mu Chifalansa: sixain.Werengani yonse → 5 ku 1 pa asanu ndi limodzi, ndipo lililonse limawononga 2.70% womwewo.
Malamulo a ku France
Ndi la partage, theka la betcha la manque kapena passe limabwerera ziro ikatuluka, ndipo mtengo wake umatsika kufika pa 1.35%. Ndi en prisonlamuloEn prisonLamulo la ku France: ziro ikatuluka, betcha la even-money limasungidwa kwa kuzungulira kotsatira m’malo moluzidwa. Limachepetsa phindu la kasino ndi theka pa mabetcha amenewo.Werengani yonse → betcha limasungidwa kwa kuzungulira kumodzi kwina m’malo mwake: likapambana limabwezedwa popanda phindu, ndipo likaluza limatengedwa.
Mafunso
Mpira unagwera mwachidule, “unaphonya” kupitirira 18. Passe amatanthauza kuti unapitirira.
Ayi. Kuzungulira kulikonse ndi 18/37 pa theka lililonse.
Nthabwala yopumitsa

1–18 kapena 19–36. Betcha lofanana ndi zofiira, bokosi losiyana.
Magwero
- Ethier, S. N. The Doctrine of Chances: Probabilistic Aspects of Gambling.