True that. As @South Park has pointed out below: "The only strategy that works on games that are completely luck based are money management strategies". I totally agree with this.
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It depends on what meaning to invest in the word "works". If it's about making a profit (as most people mean when they talk about gambling strategies) then money management doesn't work. If it's about increasing the time of playing sessions or about avoiding the rapid loss of the entire deposit, then it works. And of course money management works in the sense that it is used to set a maximum gambling budget for example for a month/week in order to avoid uncontrollable losses.