3/2 Roulette Strategy

Rule as described

The 3/2 layoutequipmentLayoutThe printed betting grid on the table. Also: table, felt, cloth.Read full → places 3 chipsmoneyChipA token representing a fixed amount, placed on the layout to make a bet. Also: check.Read full → on one outside even-money choice and 2 chips on one columnbetColumnTwelve numbers in one vertical column of the layout, pays 2:1.Read full →. “3/2” describes those chip counts, not a payoutmoneyPayoutWhat a winning bet returns, quoted as “X to 1” on top of the returned stake.Read full → ratio. RedbetRedEven-money bet on the 18 red numbers. French: rouge.Read full → plus the second column has 26 positive European pocketsequipmentPocketOne of the 37 numbered compartments on the rotor. Also: slot, cup.Read full →; blackbetBlackEven-money bet on the 18 black numbers. French: noir.Read full → plus the first column has 24. The difference comes from how many red or black numbers sit in the chosen column.

Red-and-second-column payout table

For red plus the second column, four numbers are both red and in the column.

Worked example

Place 3 on red and 2 on the second column. Number 14 is both bets: the red gain is 3 and the column gain is 4, net +7. A red number outside the column loses its 2-unitmoneyUnitThe base stake a system or a player works in. Progressions are described in units so they apply at any table.Read full → column stake, so it nets +1; a black second-column number loses its 3-unit red stake but nets +1 from the column. A number in neither loses the full 5.

Cost and risk

For this red-and-second-column example the expectation is (4 × 7 + 22 × 1 − 11 × 5) / 37 = −5/37. Thus the 70.27% claim is valid for this particular color-column combination, but it is not universal. Black plus first column has 24/37 positive outcomes, and a parity plus any column also has 24/37. Stopping after profit changes neither the next independent spin nor the negative return of the five units already exposed.

Questions