This roulette strategy has been adapted for unlimited testing.
It was impossible to do this with a fixed number of progression steps using strategy steps.
Unfortunately, the strategy now reads a little more difficult, but this flexibility brings the advantage of limitlessness.
The dozens 1 and 2 are bet.
It starts with betting 1 piece for each of the two chances.
The bet remains 1 as long as a win occurs.
After a loss it is tripled: 1, 3, 9, 27, and so on.
The probability to win a 2 dozen bet is 2 x 12/37 (single zero) ~= 65 percent.