Roulette Betting Strategies · Positive progression · 6 min

Contra Bet Roulette Strategy

Contra Bet ulte D’Alembert jaisa rule hai: jeet ke baad ek unit jodiye aur haar ke baad ek ghatayiye.

Chhota jawab

Ek unit ka floor rule ko chalne laayak banata hai, warna lagatar haar agle stake ko zerowheelZeroAkela green pocket jise koi even-money, dozen ya column bet cover nahi karta; house edge ka source. Doosre naam: single zero, 0.Poora padhein → tak le aati. Yeh negative European expectation ko nahi badalta.

bet type
even money
jeet ke baad
+1 increment
haar ke baad
−1 increment
yahan ka floor
1 unit

Rule aur seema

Outside even-money betbetEven-money betRed/black, odd/even, high/low. 18 numbers, payout 1:1.Poora padhein → use kijiye, increment bankrollpaisaBankrollKhelne ke liye alag rakhi gayi kul raqam. Bankroll management ka matlab hai tay karna ki har bet aur har session mein iska kitna hissa risk karna hai.Poora padhein → ke 1% se zyada na ho: jeet ke baad ek increment badhaiye aur haar ke baad ghataiye. Yeh D’Alembert ka ulta, yaani positive, variant hai. Kyunki lagatar haar ke baad warna zero ya negative bet lagani padti, example mein ek unitpaisaUnitBase stake jismein koi system ya player kaam karta hai. Progressions units mein batayi jaati hain taaki kisi bhi table par laagu hon.Poora padhein → ka floor rakha gaya hai.

Tay progression table

1 unit se shuru kijiye aur stake ko kabhi 1 se neeche mat jaane dijiye. Floor wahi seema deta hai jo lagatar haar ke baad sequence chalate rehne ke liye zaroori hai.

kya huamaujooda stakeagla stake
shuruaat11
jeet12
jeet23
haar32
floor par haar11
Aam D’Alembert jeet aur haar ke baad ulti disha mein chalta hai.

Hisaab ka example

BlackbetBlack18 black numbers par even-money bet. French mein: noir.Poora padhein → par 1 unit lagaiye. Jeet agli bet ko 2 kar deti hai; doosri jeet 3. Agar 3-unit bet haarti hai, toh agli 2 hogi. Ek aur haar use 1 par le aati hai. Pehle ki jeeton ke bawajood in chaar poori bets mein khiladi ka hisaab 1 + 2 − 3 − 2 = −2 hai, jo dikhata hai ki stake ka pattern nuksaan wapas laane ka saboot kyun nahi hai.

Keemat aur risk

Jeet ke baad badhane se baad ki haar badi hoti hai, jabki haar stake ko floor ki taraf chhota bhi karti hai. Isse volatility aur exposure ki timing badalti hai, har unit par 1/37 ka even-money European edge nahi. Bankroll ke percentage mein tay increment shuruaati stake ko seemit kar sakta hai, lekin negative bet ko positive nahi bana sakta. Kisi bhi progressionstrategyProgressionKoi bhi rule jo pichhle results ke hisaab se stake badalta hai. Negative progressions haar ke baad ise badhati hain, positive jeet ke baad.Poora padhein → ke description par bharosa karne se pehle ek tay floor aur table ke rules saaf hone chahiye.

Sawaal

Kya Contra Bet reverse D’Alembert se alag hai?

Iski disha reverse D’Alembert wali hai: jeet ke baad stake badhte hain aur haar ke baad ghat-te hain.

Ek unit ka floor kyun?

Floor ke bina haar ke baad ghatate-ghatate aakhir mein zero ya negative bet lagane ki baat aa jaati hai. Ek unit ka floor is namumkin instruction ko rokta hai.

Thodi hansi

Do jeet aur do haar, phir bhi do units ka nuksaan: badi bets jeet ke baad aayi thi.

Do jeet aur do haar, phir bhi do units ka nuksaan: badi bets jeet ke baad aayi thi.

Sources

  1. RouletteDoc, “Contra Bet system” — stated rule and ambiguity https://roulettedoc.com/strategy/contra-bet-system
  2. Roulette77. Strategy description and examples. https://roulette77.us/strategies/contra-bet
  3. Wizard of Odds, D’Alembert Betting System — ordinary D’Alembert context https://wizardofodds.com/gambling/dalembert-betting-system/
  4. Wizard of Odds, The Truth about Betting Systems https://wizardofodds.com/gambling/betting-systems/
2026-09-28 ko review kiyamodel: European, single zero walamethodology ↗sources ↗