Has anyone ever invented a system for gambling that has been 100%
successful? If so did the gambler continue to win long term or did the
industry change their rules and / or ban them?

hello,There are two basic methods described that can be effective at casino
games. Both of these methods depend upon playing "live" - an online
casino is usually set up to be immune from these methods. Most of them also declare exactly which methods they use. You can see one example here: http://www.casino-apuestas.es .They use something called RNG or Random Number Generator which is their algorithm for making sure the cards you get are random, if you choose to believe them.

NO one can say that, glambling is always the game of chance n also of luck

casino is always about luck !!!!

much more lose than winnings

if the RNG is for real than probably there is a 50/50 odds .... the problem is that people always remember the times they lost more than the times they won.

To answer your question - Yes!

I have a strategy that works consistently well for me. I've used it for over three years and it's still making me money.
Is it for sale? No! That would be foolish.
Email me if you want to discuss roulette.
Cheers
WRX

100% fool proof doesnt exist. If it did, it would be a scam plain and simple.

There are strategies and systems out there that do make you money each time you play.

I have had some recently good success using www.roulettesystemwinner.com. Playing roulette and finishing up ahead 90% of the time sure feels pretty darn good :P