Had some luck with this one, it's 3-9 numbers bet.
TRIGGER- for each new dozen hit, the "other" unhit doublestreet is bet within that dozen (each dozen consists of two doublestreets), the 3 numbers of the opposite color of the current number hit is bet within the "other" unhit doublestreet.
Only 3 numbers are bet within each dozen.
The bet is progressive, 3+3+3 numbers are bet.
For an example. number 3 RED hits, now numbers 8,10,11 BLACK are bet. Next lets say number 13 BLACK hits, now numbers 19,21,23 RED are bet, then number 36 RED hits now numbers 26,28,29 BLACK are bet.
Progression: +1u bet when 9 numbers are bet, then do 3 spins then STOP
How i use to play (optional) after 6 spins if 6 numbers are bet +1u bet or else STOP
5/5 Games won, (played with 1u bets) wingoal +100u, stoploss -500u
9/10 Games Won.