How many tests are needed before concluding that a system is a winner

[Bebediktus3]

Now tell me how you know that I can't know when blacks are in domination.

Do you understand that if I am Grandmaster in chess I simply know that will win accordingly 99.9% random peoples? From where I know? Simply because I know how to play and others 99.9% or not know or know much worse than me.
So in roulette, you simply must create the same situation how with that Grandmaster...that is all.

And opposite to that Grandmaster - you do not know when black will fall and because of that your expectation to win is negative... all is super simple.
All this talk is about expectations to win -  you simply not understand. what you must be able to do, that expectation to win will be positive.
In chess that is simply -,, you want to win must learn how to play that game - better than others.

Why do you think that in roulette is other?

Why do you think, that in this game you can be winner by knowing some simple rule ?

[gizmotron2]

Why do you think, that in this game you can be winner by knowing some simple rule ?

I have spent a few years teaching people how to see domination and to exploit it. After that someone suggested that I could teach everyone for free and most of them would not see it or do the work it takes to see it. That has pretty much been validated. So it sits there in plain sight. Eventually it will be validated. Until then the world will still believed to be flat. And that ends me trying to suggest what is required to validate a real experiment.

[Joe]

my question is, how many spins does a player (either system or advantage player) need to test before he concludes that his approach is a winner?

It depends on the amount of numbers bet and how sure you want to be. More bets = more certainty that the system has an edge if it continues to win. You can calculate the empirical edge using the formula: Edge = total profit / total amount bet.

[maestro]

If my hit rate when cover 6 numbers is 1/5 I have 20% advantage and win without problems.

big brain.....

[Bebediktus3]

big brain.....

Say that to autor 

well if you bet 6 numbers and manage to hit in 5 spins you will win even there is negative exp.