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D'Lembert Roulette System

In the process of playing online roulette, your opponent, more than anything else, is the built-in house advantage, and you've got to use any weapon you can lay your hands on to shift the odds, even incrementally, as much as you can in your favor. Making changes in certain strategy decisions isn't really going to get the job done, since with one minor exception all of them have a 5.26% negative expectation. As a result, you are going to have to approach this dilemma with the help of a betting system, and that generally calls for a certain bet progression that has to be put into use, and is is based solely on what the previous result of your bet was, rather than what you think it is going to be on the next spin.

One of those roulette systems is called the D'Alembert System, and that is what we are going to go over today.

If you're looking to strike it rich, this is not necessarily the system you are going to use, but at the same time it's highly unlikely that you are going to get tapped out either.

Like every other roulette betting system, your "playing strategy" consists of plays on the outside bets, not the straight numbers (i.e., 1, 2, 3, 4, up to 36). That's because the bets that have the same amount of outcomes on either side, at least theoretically (we'll explain that in a moment), are the ones that are closest to being even money propositions.

As for how to employ the D'Alembert, it's rather elementary:



Let's illustrate this. Assume that you started out with a $5 wager, and then lost the first wager, you would then turn around and bet $6 on the next round.Then if you lost again, your next bet would be $7. If you lose again, it's $8, and so on.

As you can imagine, although you are making an increase to your bet after each defeat, you are not doing it the way you'd do it with a Martingale, where you double up on your bet after losing. The D'Alembert is less radical in the respect that it would take a pretty long losing streak to bring yourself to the point where you would exceed the table limit, which is always your principal worry when playing a Martingale.

In fact, we're talking about something that is just the opposite; in the D'Alembert, your real concern is getting to the point where you have to go below the table MINIMUM.

Think about it - if, say, $1 is the table minimum and you are beginning your betting pattern with $5, you will actually get yourself into trouble if you go on a strong winning run. If you win, for instance, you go to $4. Then if you win again, you are required to move down to $3. Another win takes you to $2 and then even if you lose a couple of times (which obviously is quite possible), bringing you to $4, all you have to do is get three more wins and you will be at the table minimum. Then if you win, there is literally nowhere to go, because you can't bet LESS.

What would you do then? That's the problem.

What might be more advisable is a situation where you begin betting with a higher minimum - ten dollars, for example. if you do that you at least don't risk letting yourself slide down so easily to the table minimum, since only once in every 1758 spins will you encounter a sequence where you would win ten spins in a row.

There is certain predictability, if you will, in this system, in that if things "even out" for you, you know what you are going to win. For example, you have the same amount of wins and losses, your profit will be equal to the number of winning plays. Ten wins and ten losses get you to ten units of profit.

While that seems pretty simple, that only works simply if you were making wagers that were precisely even money, and you were left with the reasonable expectation that you'd have the same number of wins as losses at the roulette casino. The reality, however, is that you are going to win a little less (because of the presence of the zero and/or double zero make the outside bets less than 50/50), so what you should probably be looking for with the D'Alembert is the opportunity to have a fighting chance to come out ahead on any given short-run situation.
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