Contra bet strategy fi roulette
Contra Bet a one rule inna di style a reverse D’Alembert: add one unit afta a win an tek weh one afta a loss.

A floor a one unit mek di rule possible fi follow, wen loss afta loss wudda otherwise push di nex stake dung to zeropon di wheelZeroDi one green pocket weh no even-money, dozen or column bet nuh cover; a weh di house edge come fram. Nex name: single zero, 0.Read di whole ting →. It nuh change di negative European expectation.
Di rule an it limit
Use a outside even-money betbet demEven-money betRed/black, odd/even, high/low. 18 numba, pay 1:1.Read di whole ting → wid a step weh nuh bigga dan 1% a di bankrollmoney mattaBankrollAll di money yuh set aside fi play. Fi manage yuh bankroll mean yuh decide ow much a it yuh a go risk pon evry bet an evry session.Read di whole ting →: go up one step afta a win an come dung one afta a loss. Dis a one reverse, or positive, version a D’Alembert. Cause loss afta loss cudda otherwise ask fi a zero or negative bet, di example use a floor a one unitmoney mattaUnitDi base stake weh a system or a playa work wid. Dem describe progression inna unit suh dem work at any table.Read di whole ting →.
Di progression table as dem state it
Start pon 1 unit an neva mek di stake go unda 1. Di floor gi di limit weh di sequence need fi keep gwaan afta loss afta loss.
Example, step by step
Bet 1 unit pon blackbet demBlackEven-money bet pon di 18 black numba. Inna French: noir.Read di whole ting →. A win push di nex bet up to 2; a second win push it to 3. If di 3-unit bet lose, di nex one a 2. Anodda loss bring it back to 1. Di playa win 1 + 2 − 3 − 2 = −2 ova dem four bet deh, even wid di win dem bifo. Dat show wah mek a stake pattern nuh prove seh yuh wi get back yuh money.
Cost an risk
Fi go up afta win mek di loss dem afta dat bigga, while loss dem also push di stake dung to di floor. Dat change ow much di result swing an wen di risk come, not di even-money European edge a 1/37 fi evry unit. A step weh set as a percentage a di bankroll can put a cap pon di fus stake, but it cyaan mek a negative bet turn positive. Yuh fi set a clear floor an know di table rule dem bifo yuh trust any progressionstrategy demProgressionAny rule weh change di stake based pon di result dem weh pass. Negative progression raise it afta loss, positive progression afta win.Read di whole ting → description.
Question dem
It go di same way as reverse D’Alembert: stake go up afta win an come dung afta loss.
Widout a floor, if yuh keep tek weh afta loss, it wi ask fi zero or a negative bet in di end. Di floor a one unit stop dat instruction weh cyaan done.
Sumting fi laugh

Two win an two loss, an yuh dung two unit: di bigga bet dem come afta di win dem.
Source dem
- RouletteDoc, “Contra Bet system” — di rule as dem state it, an weh nuh clear
- Roulette77. Wah di strategy a an example dem.
- Wizard of Odds, D’Alembert Betting System — background pon di regular D’Alembert
- Wizard of Odds, The Truth about Betting Systems