Strateji Contra Bet bilong Rulet
Contra Bet em i lo i go baksait long D’Alembert: putim wanpela yunit moa bihain long win na rausim wanpela bihain long lus.

Daunbilo mak bilong wanpela yunit i mekim lo i ken wok, long wanem, sapos nogat, planti lus bai daunim bet i kam bihain i go long sirowilSiroWanpela grinpela hul we i no gat bet wan-long-wan, dosen o kolam i karamapim; em i as bilong edj bilong kasino. Narapela nem: wanpela siro, 0.Ritim olgeta →. Em i no senisim avarej lus bilong Yurop.
Lo na mak bilong en
Usim wanpela ausait bet wan-long-wanbetBet wan-long-wanRet/blak, od/iven, antap/daunbilo. 18 namba, pe em i 1:1.Ritim olgeta → wantaim step i no winim 1% bilong mani bilong pilaimaniMani bilong pilaiOlgeta mani yu putim long sait bilong pilai. Lukautim mani bilong pilai em i makim hamas long en yu redi long lusim long wanpela bet na long wanpela sesen.Ritim olgeta →: apim long wanpela step bihain long win na daunim bihain long lus. Em i wanpela kain D’Alembert i go baksait, o D’Alembert i go antap bihain long win. Long wanem planti lus i ken askim bet bilong siro o daunbilo long siro, eksampel i usim daunbilo mak bilong wanpela yunitmaniYunitMani bilong bet bilong stat we wanpela sistem o wanpela pleia i wok long en. Ol i stori long ol progresen long yunit, olsem na ol i ken wok long wanem tebol.Ritim olgeta →.
Namba tebol bilong progresen ol i tokaut
Stat long 1 yunit na no ken larim mani bilong bet i go daunbilo long 1. Daunbilo mak i givim mak yu nidim bilong go het long lain bihain long planti lus.
Eksampel
Betim 1 yunit long blakbetBlakBet wan-long-wan long 18 namba blak. Tok Frans: noir.Ritim olgeta →. Wanpela win i apim bet i kam bihain i go long 2; namba tu win i apim i go long 3. Sapos bet bilong 3 yunit i lus, bet i kam bihain em 2. Narapela lus i bringim i go bek long 1. Long ol dispela fopela bet i pinis, pleia i winim 1 + 2 − 3 − 2 = −2 maski em i win pastaim. Dispela i soim olsem pasin bilong mani bilong bet i no pruf olsem yu ken kisim bek mani.
Kost na hevi
Sapos yu apim bihain long win, ol lus i kam bihain i kamap bikpela moa, na ol lus tu i save daunim mani bilong bet i go long daunbilo mak. Dispela i senisim varians na taim bilong hevi, i no senisim edj bilong Yurop long wan-long-wan bilong 1/37 long wanwan yunit. Step yu makim olsem pasen bilong mani bilong pilai i ken pasim namba wan bet long mak, tasol em i no inap mekim bet daunbilo long siro i kamap antap. Yu mas makim daunbilo mak na ol lo bilong tebol pastaim long yu bilip long wanem stori bilong progresenstratejiProgresenWanem lo i senisim mani bilong bet long ol resal i go pinis. Negative progresen i mekim bet i go antap bihain long lus, positive progresen bihain long win.Ritim olgeta →.
Ol askim
Rot bilong en em i rot bilong D’Alembert i go baksait: mani bilong bet i go antap bihain long win na i go daun bihain long lus.
Sapos i nogat daunbilo mak, rausim bihain long lus bai askim bet bilong siro o daunbilo long siro long bihain. Daunbilo mak bilong wanpela yunit i pasim dispela tok yu no inap bihainim.
Liklik lap

Tupela win na tupela lus, tupela yunit daun: ol bikpela bet i kam bihain long ol win.
Ol As bilong Save
- RouletteDoc, “Contra Bet system” — lo ol i tokaut na ol hap i no klia
- Roulette77. Stori bilong strateji na ol eksampel.
- Wizard of Odds, D’Alembert Betting System — D’Alembert olsem oltaim
- Wizard of Odds, The Truth about Betting Systems