All the players know that the roulette wheel is divided into 3 segments. Each of which consists of 12 numbers. Roulette System 1.5 dozen covers 30 numbers out of 37 possible.

If you decide to use this algorithm you will need:

- To put a smaller amount equivalent

- To put on the third dozen

With this system, the risk of loss is very small and limited to six numbers 9, 20, 21, 22, 23 and 24.

Read more here: Roulette System 1.5 dozen