I was shown this decades ago and never got around to trying it for real until Ladbrokes gave me their money to try it out
I'm using this method and I'm £151 in profit in less than 30 minutes (EDIT: £208.50 in less than an hour), plus Ladbrokes have released a tenner from the bonus for me to withdraw as well
Every time I've demonstrated this to someone it has worked out without fail, and I've shown this using a coin as an example of an even money bet, dozens of times.
There is a risk that if you have a really atrocious losing streak you will run out of funds, but hey, it's not your money after all so who cares.
Get yourself a pencil and a piece of paper, now write down the figures 1 & 2 in a vertical column.
The total of the top figure and the bottom figure is the amount of your bet (£1 + £2 = £3).
Now select any even money bet, Red/Black, Odd/Even, 1-18/19-36 get my drift.
You're going to stick with your selection no matter what, trust me here ok.
So stick your £3 bet on your selection, I'll use Red as an example.
If your bet wins you cross off the top and bottom figures from your vertical list and you're £3 up, if it loses you add the cost of your losing bet to the bottom of the list.
So now your list looks like this:
1
2
3
If it lost your next bet is £4 (1+3)
If it wins cross off 1 & 3 from your list, leaving 2, which is your next bet.
If it loses add 4 the bottom of your list and your next bet is £5.
And so it goes on. When you have crossed out all the numbers on your list your winnings will be the sum total of your original list. In this case £3.
If you win you cross of 2 numbers and if you lose you add 1 number to the bottom of the list.
The most I've had to wager on 1 spin so far has been about £30 with a really bad run of about 7 losing spins on the trot, but a couple of succsesive wins soon crosses numbers off the list.
No point in starting with your list adding up to a tenner profit 'cos you'll soon end up having to bet £70+.
Stick with just 2 numbers, make £3 and do it all over again.
Do this on French Roulette and if 0 comes up treat it as a loss, in fact when you've crossed off all your list you will be 50% of whatever your bet was when 0 came out as a bonus (I think that's right but the alcohol is kicking in now).
Try this on the Free Play game and check it works.
I'll wait a couple of days for the £100 to land in my other account and switch between them, but 2 accounts and a quick £50 from each one daily will do me nicely thank you.
Hope this all makes sense to you all.
Keep lucky
BTW is there any way to tell how much I've bet through so far
