The 3/2 system: red and the second column

This 3/2 layout places three units on red and two on the second column. Five units are at stake. Its net result depends on whether both bets win, only one wins, or neither wins.

Map the overlap

The second column contains 2, 5, 8, 11, 14, 17, 20, 23, 26, 29, 32, 35. Four of these numbers are red:5, 14, 23, 32. The other eight are black. The remaining 14 red numbers win only the color bet.

The first row returns six from red and six from the column. The middle rows each return six from one winning wager. Zero belongs in the final row under ordinary rules.

Coverage is 26 pockets, with unequal gains

Twenty-six of 37 European pockets produce a positive result, but four pay much more than the others. The expected net is (4×7+22×1−11×5)/37=−5/37 units. The American wheel adds 00 to the full-miss group, giving −10/38 units. Both match the ordinary edge on the five-unit stake.

A fixed-size session should retain each outcome's amount. Replacing+7, +1 and−5 with a simple win/loss flag destroys the information needed to reconcile the balance.

The name does not fix every layout

The audited native 3/2 preset uses red and the second column. Changing the color or column changes which numbers overlap. Some pairings have different overlap counts, so recompute the matrix rather than reuse this table automatically. A staking progression applied to both parts multiplies all these amounts and needs its own budget limit.

Compare two columns for non-overlapping bets with a single positive amount, and read coverage bets for the difference between a covered number and a profitable whole spin.