Double UP BlackJack

[mt4]

Blackjack Pays: 3 to 2 (1:1 against Dealer 16).

You can see on the game creator's website that blackjack always pays 3:2.

https://www.scoregamingllc.com/_file...26ba147790.pdf

In USA, player naturals are resolved immediately, just like dealer naturals. It would be too complex to change the existing rules, and would make this game unattractive to any player.

You can also check here:
https://casino.betmgm.com/en/blog/ho...-up-blackjack/

"The main game has an RTP of 99.72%"
"If you receive a natural 21 (or blackjack,) your payout odds will be +150."
"If the dealer has a hand worth 16, it’s a push. The only exception is if the player has a blackjack (natural 21.)"
On the image of the virtual table, it states "DEALER 16: GAME ENDS, 21'S PAY 1:1, ALL OTHER WAGERS PUSH", so this adds an additional exception.

"21 totals" does not include blackjack; blackjack pays 3:2 is mentioned earlier in the rules, blackjack always pays immediately in USA; that Canadian author is mistaken.

On the other hand, perhaps the house edge is really 0.84%.
https://www.scoregamingllc.com/post/...y-score-gaming

The rules are based on "standard Las Vegas blackjack". I have sent an inquiry to the game developer and will make a new post if I get a reply.

Finally, in this video, you can see that they pay the natural immediately, in the first 30 seconds of the video: https://www.youtube.com/watch?v=-RPL8EWsxBM

[Cacarulo]

You can see on the game creator's website that blackjack always pays 3:2.

https://www.scoregamingllc.com/_file...26ba147790.pdf

In USA, player naturals are resolved immediately, just like dealer naturals. It would be too complex to change the existing rules, and would make this game unattractive to any player.

Thanks. Check out this site:

https://debitcardcasino.ca/blackjack...-double-up-21/

Notice that the site emphasizes this rule in particular.

Sincerely,
Cac

[Cacarulo]

You can see on the game creator's website that blackjack always pays 3:2.

https://www.scoregamingllc.com/_file...26ba147790.pdf

In USA, player naturals are resolved immediately, just like dealer naturals. It would be too complex to change the existing rules, and would make this game unattractive to any player.

You can also check here:
https://casino.betmgm.com/en/blog/ho...-up-blackjack/

"The main game has an RTP of 99.72%"
"If you receive a natural 21 (or blackjack,) your payout odds will be +150."
"If the dealer has a hand worth 16, it’s a push. The only exception is if the player has a blackjack (natural 21.)"
On the image of the virtual table, it states "DEALER 16: GAME ENDS, 21'S PAY 1:1, ALL OTHER WAGERS PUSH", so this adds an additional exception.

"21 totals" does not include blackjack; blackjack pays 3:2 is mentioned earlier in the rules, blackjack always pays immediately in USA; that Canadian author is mistaken.

On the other hand, perhaps the house edge is really 0.84%.
https://www.scoregamingllc.com/post/...y-score-gaming

The rules are based on "standard Las Vegas blackjack". I have sent an inquiry to the game developer and will make a new post if I get a reply.

That would be wonderful. I'll eagerly await the developer's response.

Finally, in this video, you can see that they pay the natural immediately, in the first 30 seconds of the video: https://www.youtube.com/watch?v=-RPL8EWsxBM

By the way, take another look at the video. I don't see the dealer paying 3:2, but rather 1:1.

Sincerely,
Cac

[Cacarulo]

That would be wonderful. I'll eagerly await the developer's response.



By the way, take another look at the video. I don't see the dealer paying 3:2, but rather 1:1.

Sincerely,
Cac

Sorry. I watched the video more carefully and apparently the dealer is indeed paying 3:2 (at minute 0:21). Then at minute 1:49, it's clearer.
The only thing left is to find out who did the analysis that resulted in a 0.84% house edge.

Cac

[iCountNTrack]

@cacarulo, did you compute your figures using a sim or CA?

[Cacarulo]

@cacarulo, did you compute your figures using a sim or CA?

Good question. The results are from my simulator since it's easier for me to start there, and once they're 100% confirmed,
I proceed with combinatorial analysis. It's not easy to modify code that I wrote over 25 years ago especially when the rules are
so confusing. Nevertheless, the results of my simulator have always been verified by CA, and vice versa.

Sincerely,
Cac

[Archvaldor]

It's not easy to modify code that I wrote over 25 years ago especially when the rules are
so confusing.

Sincerely,
Cac

AI is pretty good at this. Just explain in natural language and feed it error messages it will get it right after a few tries usually. Ancient dialects don't phase it that much.

As long as you have an external source of verification like CA this will be faster and easier. AI is useless without it but can be godlike with it.

[Cacarulo]

AI is pretty good at this. Just explain in natural language and feed it error messages it will get it right after a few tries usually. Ancient dialects don't phase it that much.

As long as you have an external source of verification like CA this will be faster and easier. AI is useless without it but can be godlike with it.

I totally agree with your comment about AI. I've made some progress in modifying my CA but still haven't managed to make it match what my simulator says.

Sincerely,
Cac

[David26]

Hello,
I have this game but player loose double and split bet against BJ (=ENHC)
Can I just add additional 0.11% HE to the 0.32% making the real new HE = 0.43% ?
Not sure I can do that cause in the forum of wizard odd Charles said for example RSA doesn’t worth 0.07 but 0.14 in this game so I’m wondering if ENHC still worth 0.11 in double up blackjack ?

[Cacarulo]

Hello,
I have this game but player loose double and split bet against BJ (=ENHC)
Can I just add additional 0.11% HE to the 0.32% making the real new HE = 0.43% ?
Not sure I can do that cause in the forum of wizard odd Charles said for example RSA doesn’t worth 0.07 but 0.14 in this game so I’m wondering if ENHC still worth 0.11 in double up blackjack ?

Hi,

My calculations don't align with Charles Mousseau's. He says the House Edge is 0.32%, while I say it's 0.37%. I've also calculated those of ENHC, which are probably more common in England,
and I've obtained a House Edge of 0.44%/0.45%. As you can see, the difference is 0.07%/0.08%.
I'd like to assist you better, but for that, I need the exact rules of the casino where you're playing. Perhaps the following post could serve as a reference for you:

https://www.blackjacktheforum.com/sh...e-Up-Blackjack

If you can answer those questions as accurately as possible, I could provide you with more precise results.

Thank you very much in advance.

Sincerely,
Cac

[David26]

Hi ! Thank you for your answer !
My rules match exactly as the rules specified in wizard odd here : https://wizardofodds.com/games/double-up-blackjack/

The dealer do take card on soft 17.
The only difference is ENHC cause dealer leave double up bet if he get BJ but TAKE the bet lost including double and splits …
So I can assume playing a 0.44-0.45% HE game ?

[Cacarulo]

Hi ! Thank you for your answer !
My rules match exactly as the rules specified in wizard odd here : https://wizardofodds.com/games/double-up-blackjack/

The dealer do take card on soft 17.
The only difference is ENHC cause dealer leave double up bet if he get BJ but TAKE the bet lost including double and splits …
So I can assume playing a 0.44-0.45% HE game ?

The rules listed in WOO are quite generic, which is why I need something more precise. The only thing that is clear from what
you're telling me is that it's 6D, H17, DOA, DAS, SPA1, SPL3, NS and ENHC (players LOSE ALL bets against a dealer blackjack)
For example, how would you answer the following questions?

1) Penetration?
2) Does blackjack pay 3 to 2 even if the dealer has 16?
3) Table maximums and minimums?
4) Bonus-16 maximums and minimums?
5) How much does the bonus pay when the dealer has a 16 in two cards? 3 to 1 or 4 to 1?

And how about these other rules?

6) Some say you can only "double up" with 2 cards, but if you have a 7, 4 against a 6, obviously you're going to double down, but you're not going to "double up". Now, suppose you receive a 10, totaling 21, can you "double up" now?
7) If you split a pair of aces and receive a 10 on each one, can you "double up"? I understand that you can.
8) There's another rule that says you can hit until you get, for example, 20 or 21 and then "double up". In this case, there are more than 2 cards, similarly to the case of double down. Is this true or false?

The second question changes the entire scenario.

I await your answers.
Thank you.

Sincerely,
Cac

[aceside]

Somebody said this game was at Cripple Creek, CO, but that was three years ago. I find this part of the rule countable, double up bet loses on dealer 2-card 16 pushes, and also on multiple-card 16 pushes. So, a side count of 6s is needed for this game?