Contra Bet roulette ɔkwan
Contra Bet yɛ mmara a ɛte sɛ D’Alembert a wɔadane no: fa kyɛfa baako ka ho wɔ nkonim akyi na yi baako firi mu wɔ ahwereɛ akyi.

Ase ahyeɛ a ɛyɛ kyɛfa baako ma wotumi di mmara no so berɛ a ahwereɛ a ɛsan ba anka bɛma bɛt sika a ɛdi hɔ no aba hweentwahonanHweeTokuru ahabammono baako a sika pɛ bɛt, dumienu kuo bɛt anaa santen tee bɛt biara nkata so; kasino mfasoɔ fibea. Wɔfrɛ no nso hwee baako, 0.Kenkan ne nyinaa →. Ɛnsesa Yuropu boɔ a wɔhwɛ kwan a ɛyɛ ahwereɛ no.
Mmara ne ne hyeɛ
Fa abɔnten sika pɛ bɛtbɛtSika pɛ bɛtKɔkɔɔ/tuntum, ɛnkyɛ pɛ/ɛkyɛ pɛ, soro/fam. Nɔma 18, akatua 1:1.Kenkan ne nyinaa → di dwuma na nkɔsoɔ no mmoro agorɔ dwetiresikaAgorɔ dwetireSika a woayi asie nyinaa ama agorɔ. Agorɔ dwetire so hwɛ ne sɛ wobɛsi gyinaeɛ wɔ dodoɔ a wode bɛto asiane mu wɔ bɛt biara ne agorɔ bere biara mu.Kenkan ne nyinaa → mu 1%: fa nkɔsoɔ baako ka ho wɔ nkonim akyi na yi firi mu wɔ ahwereɛ akyi. Yei yɛ D’Alembert ɔkwan a wɔadane no, anaa deɛ ɛkɔ soro. Ɛfiri sɛ ahwereɛ a ɛsan ba anka bɛhwehwɛ bɛt a ɛyɛ hwee anaa deɛ ɛwɔ hwee ase nti, nhwɛsoɔ no de kyɛfasikaKyɛfaBɛt sika a ɛwɔ ase a nhyehyɛe anaa agorɔfoɔ de yɛ adwuma. Wɔka bɛt nsakraeɛ ntoatoasoɔ ho asɛm wɔ kyɛfa mu sɛdeɛ ɛbɛyɛ a ɛbɛfata ɛpono biara.Kenkan ne nyinaa → baako ase ahyeɛ di dwuma.
Bɛt nsakraeɛ ntoatoasoɔ pon a wɔaka ho asɛm
Fi aseɛ wɔ kyɛfa 1 na mma bɛt sika no nkɔ 1 ase da. Ase ahyeɛ no ma hyeɛ a ɛho hia sɛdeɛ ɛbɛyɛ a ntoatoasoɔ no bɛkɔ so wɔ ahwereɛ a ɛsan ba akyi.
Nhwɛsoɔ a wɔayɛ ho adwuma
To kyɛfa 1 wɔ tuntumbɛtTuntumSika pɛ bɛt wɔ nɔma tuntum 18 no so. Franse kasa mu: noir.Kenkan ne nyinaa → so. Nkonim ma bɛt a ɛdi hɔ no kɔ 2; nkonim a ɛtɔ so mmienu ma ɛkɔ 3. Sɛ kyɛfa 3 bɛt no hwere a, deɛ ɛdi hɔ no yɛ 2. Ahwereɛ foforɔ de san kɔ 1. Agorɔfoɔ no anya 1 + 2 − 3 − 2 = −2 wɔ saa bɛt ɛnan a ɛwieeɛ no mu ɛmfa ho nkonim a edi kan no, na ɛkyerɛ deɛ enti a bɛt sika nhyehyɛe nyɛ adansedeɛ sɛ wobɛsan anya wo sika.
Ka ne asiane
Sɛ wokɔ soro wɔ nkonim akyi a, ɛma ahwereɛ a ɛba akyire no yɛ kɛse, berɛ a ahwereɛ nso taa tew bɛt sika no so kɔ ase ahyeɛ no so. Ɛno sesa nsakraeɛ a ɛyɛ den ne berɛ a sika da asiane mu, na ɛnsesa sika pɛ Yuropu kasino mfasoɔ a ɛyɛ 1/37 wɔ kyɛfa biara mu. Nkɔsoɔ a wɔde agorɔ dwetire mu ɔha nkyɛmu kyerɛ no bɛtumi asi ahyɛaseɛ bɛt sika ano, nanso ɛrentumi mma bɛt a ɛwɔ hwee ase nnane mfasoɔ. Ɛsɛ sɛ wɔkyerɛ ase ahyeɛ a ɛwɔ awieeɛ ne ɛpono mmara ansa na wɔde wɔn ho to bɛt nsakraeɛ ntoatoasoɔɔkwanBɛt nsakraeɛ ntoatoasoɔMmara biara a ɛsesa bɛt sika no gyina deɛ atwam so. Ntoatoasoɔ a ɛkɔ soro ahwereɛ akyi ma no kɔ soro ahwereɛ akyi, na deɛ ɛkɔ soro nkonim akyi ma no kɔ soro nkonim akyi.Kenkan ne nyinaa → nkyerɛkyerɛmu biara so.
Nsɛmmisa
Ne kwan yɛ D’Alembert a wɔadane no kwan: bɛt sika kɔ soro wɔ nkonim akyi na ɛba fam wɔ ahwereɛ akyi.
Sɛ ase ahyeɛ nni hɔ a, sɛ woyi firi mu wɔ ahwereɛ akyi a, awieeɛ no ɛbɛhwehwɛ bɛt a ɛyɛ hwee anaa deɛ ɛwɔ hwee ase. Kyɛfa baako ase ahyeɛ no si saa ahyɛdeɛ a ɛrentumi nyɛ yie no kwan.
Serew kakra

Nkonim mmienu ne ahwereɛ mmienu, kyɛfa mmienu wɔ akyi: bɛt akɛseɛ no baa nkonim no akyi.
Nsɛm fibea
- RouletteDoc, “Contra Bet system” — mmara a wɔaka ne nea ɛmmu pefee
- Roulette77. Ɔkwan no ho nkyerɛkyerɛmu ne nhwɛsoɔ.
- Wizard of Odds, D’Alembert Betting System — D’Alembert a ɛtaa ba no ho nsɛm
- Wizard of Odds, The Truth about Betting Systems