Someone Check this Math Please!!!

#1
I believe I have come up with a betting strategy using the Royal Match option on blackjack tables to get a significant advantage on the casino. It is very simple math, but you never know, so please check and confirm/reject.

In this version of Royal Match, if you get two suited cards you get paid 2:1. If you get a suited King/Queen, you get paid 50:1. From what I have heard compared to other casinos, the 2:1 is lower than most and the 50:1 is higher than most, but thats irrelevant.

This will most likely be played by me in a four or six deck game. I am thinking of playing it on the four deck Shufflemaster.

Strategy:
With four decks in the Shufflemaster, there are 52 of each suit.

From what I can figure, the chances of any match, royal or not, is slightly less than 25%. Since after the first card is given to you, there are 51 of that suit and a total of 207 cards in the deck total. Therefore, 51/207 = 24.64% chance of suited cards.

This means that there is a 76.46% chance of losing. If you look at several hands together, the chances of losing are as follows:

Hand 1 2 3 4 5 6 7
76.47 58.48 44.72 34.20 26.15 20.00 15.29
Meaning that the chances of losing seven straight hands is 15.29%

So the plan is:
Basically, starting with a $1chip, you double your bet on the Royal Match every hand.

Your bets on each hand will be as follows:

Hand 1 2 3 4 5 6 7
Chance to lose 76.47 58.48 44.72 34.20 26.15 20.00 15.29
$$Bet 1 2 4 8 16 32 64

Money lost if
you lose the hand 1 3 7 15 31 63 127

Money won if you 2 3 5 9 17 33 65
win (after deducted
loses)
All of these figures continue to increase or decrease, I only went to 7 hands to show you.

The idea is, no matter how long it takes you to win a Royal Match, when you do win your money, you will win all the money you have lost on it and then some.

This follows the pattern of binary based counting. Since the bet on each hand is 1+(everything lost so far) and you get paid 2:1, half the money you earn on your win will pay back everything you have lost and the other half is your profit.

By the 10th hand, you have a 94% to win at least one hand, but you will be in $1023 if you lose.

So really, as long as you have a big enough bank roll to keep betting exponentially like this, the longer it takes you to win, the better off you are.

The only possible pitfall is that the maximum bet on the tables at this casino are 200, so I can only bet $128 at which point I would have an advantage of 88.3%. This is still a very nice advantage. If I lost once, I could just play it again if I had the balls for an almost definite win.

So here is what I want to know. If this is right, it is very simple math. Why am I the only person to have thought of this. Check my math and let me know, Thank You. -Spenzler
 

21gunsalute

Well-Known Member
#2
This is pure Martingale. It doesn't matter what the odds are of losing x amount of hands in a row. It will happen sooner or later and when it does you'll realize how foolhardy such a system is. And are you certain you can bet up to $200 on the Royal Match? Most stores limit you to a $25 wager.
 
#4
Go get yourself 4 decks and start dealing.

Let us know how the math works out afterward.

Or get a friend to deal to you, and use pennies.

Hell, if you live near me, I'll deal. It will give me a chance to practice counting, so at least it will do one of us some good!
 

Renzey

Well-Known Member
#5
spenzler said:
I believe I have come up with a betting strategy using the Royal Match option on blackjack tables.
The chances of losing seven straight royal match hands is 15.29%
You make the same mistake that so many people do. Yes, the chances of going 7 straight hands without a match are 15.29% -- before the first hand is dealt. But the chances of going that 7th hand without a match, after you've already gone the first 6 are, guess what -- 76.47%!
 

Sucker

Well-Known Member
#6
You are cordially invited to my house so that I can be the casino, and deal cards to you. Bring money! We can play until one of us is bankrupt. And if that bankrupt person somehow turns out to be ME, wait around. I will nave no problem finding financial backers for your proposition. That way you can continue raking in the dough. :devil:
 
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