It could have been that although others were looking for "conspiracy theories" connected with those numbers. However, when the balls were changed into the new ones that strange thing stopped. Anyway,in the last few hundreds drawings nothing like that happened. That is , on average every number had the equal chance of being drawn.

So, if someone decides to play Multi lotto using betting progression system, s/he should choose such a number or a pair which had a long period of break from being drawn and bet it. Even though the balls have no memory of being drawn or not and they do not think that they should be drawn now, our intuition tells us, in a way, that they will soon be drawn.

Should we rely on our intuition? Or perhaps it can be mathematically proved.

Unfortunately, there is no guarantee that a given number will soon be drawn. It may not be drawn many times in a row and it will not be against pure Mathematics. Tossing a coin 20 times we can get heads 20 times, even though the probability of that is almost zero.

In other words, making some calculations with the use of a mathematical formula we can be 99.99% certain that a number will be drawn the next time. But it may not happen even for more than ten times in a row as if out of spite.

If someone has bad luck, just like me, such black series may happen quite often. Isn`t there a more certain way to make money on gambling ?

Why don`t you try bookmachers, they accept sport bets.

Obviously, the bookmachers control the rates so that they always make a profit unconformably to the result of a match. It does not necessarily mean that the player cannot have a strategy to win every time.