Blackjack house edge calculation

Hey, I have a question regarding a simulation I did with the Blackjack Simulator and Trainer 5.5 Full Edition, a computer program which is well regarded within the BJ community as far as I know. Out of curiosity I put in the rules of the game here at my local casino in Switzerland.

Rules:
6 Deck CSM
No hole card
Stand Soft 17
Double on any 2 cards
Split to 4 Hands
Double after split
Surrender on any 2 cards against any Dealer upcard
Aces get one card only
777 Bonus of 1x your bet (not in the simulation)

Please note that because of the no hole card rule you surrender a lot more than you would in an American style game.

Anyway, I put these rules in the WOO House Edge Calculator and the HE was 0.43851%. Which is pretty decent I guess...

However when I simulated about 1.5 Billion hands flat betting head up against the dealer, it calculated a Player Advantage of 0.112%!!!

I double checked everything and ran it again, with the same result. So I guess my question is : What is correct? Any thoughts on this?

Flynn,

I am unfamiliar with "Blackjack Simulator and Trainer 5.5 Full Edition", but the screenshot you posted appears to have you winning 46.33% of the hands, losing only 44.78%, and pushing the remaining 8.88%. For a "play-all" style, these numbers seem to be questionable, especially since your rules include surrender. Are surrendered hands counted as losses?

Dog Hand

Good question, I dont know...

The software was featured in another Post here on WOV, where different betting systems are compared :

https://wizardofvegas.com/forum/gambling/betting-systems/10048-classic-systems-tested-with-new-software-martingale-vs-oscars-grind/

Unfortunately, the screenshots are no longer available...

I am guessing you need to check a few assumptions and what the simulation actually did.
Your original rules, except for the possibility of surrender and the UK allows re-split Aces, are close to the UK rules (about .48% for 6 deck shoe).
(a) whether you lose both bets is you double or split and dealer makes a BJ (in Europe you would normally lose both)
(b) whether you can re-split Aces (in the UK you can)
(c) whether surrender is early or late (early surrender against a Ten might explain most of it)
(see https://wizardofodds.com/games/blackjack/rule-variations/ )

Never heard of the software. But, those results make no sense.

Quote: QFIT

Never heard of the software. But, those results make no sense.

I disagree. The OP says that surrender is allowed and that these are no-peek rules and so that the player will be surrendering more often. This is Early Surrender and you will be surrendering on hands in which it is eventually revealed that the dealer has blackjack. If you combine Early Surrender with enough favorable rules, then the player can have a significant advantage.

I see charliepatrick's post ended with a comment about this as well.

Update:

I contacted the developer of the software and he made me aware of the fact that I found a game with the rare Early Surrender option. Its a powerfull enough rule to sway the odds in the players favor.

Thanks for your input!

I would like to take the opportunity to recommend the software, without it I would have never realized this game is +EV.

http://www.theblackjacksimulator.com

The full version is 20 bucks, in the trial version only flat betting is available. Good value if you ask me...

Quote: gordonm888

I disagree. The OP says that surrender is allowed and that these are no-peek rules and so that the player will be surrendering more often. This is Early Surrender and you will be surrendering on hands in which it is eventually revealed that the dealer has blackjack. If you combine Early Surrender with enough favorable rules, then the player can have a significant advantage.

I see charliepatrick's post ended with a comment about this as well.

As Doghand said, you could not have more hands won than lost. This is even more true with Early Surrender.

I assume the 10.5% surrender is accounted for under thr "win" category... then it would make sense...