OBBO blackjack rule variation

I've been going to Macau a lot recently and wondered how the ruleset there would cause a variation from basic strategy, particularly against a dealer showing A with no peeking for blackjack.

The rules are:
Dealer only draws first face up card for himself - no peeking for blackjack
Dealer stands on soft 17
Double Down on any 2 cards
Surrender against any dealer card except an Ace
Continuous shuffle machine, 6 decks
Blackjack pays 3:2
Split up to 2 times to make 3 hands EXCEPT Aces which can only be split once.
Cannot Redraw split aces
Can double down after split (except aces)

And here's the main reason for the question:
Original and busted bets only - If the dealer draws a blackjack, only the original bet is taken in the event of a split. So if you split 2 times to make 3 hands and don't bust and the dealer gets a blackjack, only 1 one those 3 hands would be collected.
For double downs, there is variation between casinos. If you double an 11 and the dealer gets a blackjack, both the original and the double are taken. If you double anything else an the dealer draws a blackjack, only the original bet is taken.

This seems like it would favor splitting more vs an A, particularly with 88 with surrender not allowed. I use /games/blackjack/hand-calculator/ a lot to see the EV differences between choices, but unfortunately, incorporating this OBBO rule is not an option for that tool. Does anyone know where I can find a tool that incorporates this ruleset or what optimal strategy would be facing A with OBBO, doubledowns with 11s are totally taken when dealer gets a BJ?

An OBBO game should be played like a regular american peek game. No difference.

"For double downs, there is variation between casinos. If you double an 11 and the dealer gets a blackjack, both the original and the double are taken. If you double anything else an the dealer draws a blackjack, only the original bet is taken."

These 11 double downs should be played like an ENHC game. That means you should not double 11 vs 10 and A with basic strategy.
If you are counting cards (Hi-Lo), you will double 11 vs 10 at a count per deck of +11 or higher and never double against A.

See https://wizardofodds.com/games/australian-blackjack/

Given your rule about doubling 11 losing both bets, means you play like EHNC (ie.. don't double). Similarly if you split Aces and the Dealer gets BJ, then both hands (neither which can have busted) would lose, so this is also like ENHC. (So only split AA vs T.)

I'm guessing you split 8s vs 10 since, if you don't bust, you only lose one unit to BJ. I guess the maths shows you split 8s vs 10 and not vs A, but I wouldn't know for sure since the effect of busting and definitely losing comes into effect and changes the decision to somewhere between the US and ENHC versions.).

It's rare, unless FreeBet, to add money vs Dealer's Ace where you would lose the additional bets to BJ.

This one should work:

https://wizardofmacau.com/en/games/blackjack

Quote: charliepatrick

See https://wizardofodds.com/games/australian-blackjack/
Similarly if you split Aces and the Dealer gets BJ, then both hands (neither which can have busted) would lose, so this is also like ENHC. (So only split AA vs T.)
link to original post

No you did not read the OP correctly.

The ENHC rule only applies to DOUBLING 11 VS A.

So, all other hands have to be played like a regular american game. Don't complicate what was a simple question.

Quote: charliepatrick

See https://wizardofodds.com/games/australian-blackjack/

if you split Aces and the Dealer gets BJ, then both hands (neither which can have busted) would lose

Why would this be the case? I am currently adding OBBO to my table games website.

Imagine I split thrice, double all four times, and the dealer's blackjack beats all my hands in OBBO. Would I just lose two bets, the first hand's bet and first hand's bet's double?

Thanks

Never mind, I understand OBBO, but have a BB+1 question.

Imagine I bet $5, and split 4 times (having $20 on the table now), and then bust all four hands. Do I lost $20 (all busted bets) or $25 (all busted bets PLUS one)? Thanks

Why do we care about OBBO? These things do not exist in America, as far as I know. In all the blackjack games I’ve played so far, if I bust, I lose that hand. Casinos are way greedier these days.

#1) Life exists outside of America, and I'm sure some forum members live outside America too

#2) This is a gambling forum so people should be happy that I am talking about gambling and not cats or something

#3) I was mostly curious because I want to add Blackjack Plus to my website which has the OBBO rule

By the way you can now change the settings to play with OBBO, OBO, or BB+1 on my website's European-style (no hole card) Blackjack game

Let me assure you, outside of America, blackjack is negligible.

I really doubt that - sometimes I go on Google Maps to find casinos in other countries and check what games they offer. Blackjack seems to be played in almost every country. I do not think I have actually seen or heard of a casino abroad that does not have blackjack.

But I will leave it up to other commenters to determine which of us is right.

OBBO specifically seems to be mostly used in Australia and New Zealand where blackjack appears to be at every casino.

Trust me! There exists this game doesn't necessarily mean many people are playing.

Quote: harris

Never mind, I understand OBBO, but have a BB+1 question.

Imagine I bet $5, and split 4 times (having $20 on the table now), and then bust all four hands. Do I lost $20 (all busted bets) or $25 (all busted bets PLUS one)? Thanks
link to original post

harris,

The "+1" applies only if you have unbusted hands. Can you imagine how players would react if the casino insisted they pay MORE money after busting all their hands?

By the way, I think you meant to say "... and split 3 times...", because if you split 4 times you would have FIVE hands in play, not just four.

I vividly recall a casino where I used to play regularly that had rules signs on their BJ tables stating players could split four times. They also permitted re-splitting of Aces. One round I was dealt AA vs. A. I split, receiving an 8 on one and another A. I split again, getting a 3 and yet another A. I split a third time, getting a 4 and yet another A. When I tried to split the fourth time, the pit critter disallowed the maneuver. I pointed to the sign, but the PC (and the dealer) could not seem to comprehend the plain English difference between "Players may split four times" and "Players may split to four hands". The dealer drew to 20 and swept all my bets.

The signs disappeared from the BJ tables shortly after this incident.

Dog Hand