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The best strategy
which works for me in both cases, i.e. casinos' games and bookie betting is to follow the trajectory of my bankroll. If it increases I will make my prices higher, and visa versa. Such approach allows me to extend the number of my attempts to win
or, at least to no lose at the end. All other strategies
I have tried didn't work for me because they are either too complicated to comprehend at once or don'tr work at their core.