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Thread: Please help to provide Basic Strategy

  1. #1


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    Please help to provide Basic Strategy

    Rules :-

    1) 6 deck, S17, peek.
    2) DOA, DAS
    3) RSA2( Pair A, A split to max 2 hands only), RS4( other pair can split to max 4 hands)
    4) ES10
    5) Split (A, A) can ONLY STAND or Double but NOT HIT, Example (A,A vs 6), split to form 2 hands (A,2) and (A,4), then you can DOUBLE( or STAND) BUT NOT HIT !

    Please help to provide correct basic strategy with consideration of Rule 5.

    Thanks

  2. #2


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    Quote Originally Posted by James989 View Post
    <snip>
    5) Split (A, A) can ONLY STAND or Double but NOT HIT, Example (A,A vs 6), split to form 2 hands (A,2) and (A,4), then you can DOUBLE( or STAND) BUT NOT HIT !

    Please help to provide correct basic strategy with consideration of Rule 5.

    Thanks
    James989,

    Can you DD for less? For example, with a $100 bet, if you split AA vs. 9 and on the first A you draw a 4, can you DD for, say, only $1?

    Dog Hand

  3. #3


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  4. #4


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    Quote Originally Posted by Dog Hand View Post
    James989,

    Can you DD for less? For example, with a $100 bet, if you split AA vs. 9 and on the first A you draw a 4, can you DD for, say, only $1?

    Dog Hand

    No double for less.

  5. #5


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    I don't think rule 5 would change any of your basic strategy decisions. You're still always going to want to split aces. Just use normal 6D S17 basic strategy, and surrender 14, 15, and 16 vs 10, 16 v 9, and 8,8 and 7,7 vs 10.

  6. #6


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    Quote Originally Posted by Gronbog View Post
    Double for less is not allow rule, the wizardofodds proposed strategy for a specific hand (A, 3) vs Ace is DOUBLE, do you think that it is correct(instead of STAND) ? Can you/anyone justify it with actual EV ? Thanks

  7. #7
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    From MGP's BJCA

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  8. #8


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    Quote Originally Posted by Phoebe View Post
    From MGP's BJCA

    ScreenShot181.png
    For the game rules above, could you please show me the FULL basic strategy and its house edge ?

  9. #9


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    Quote Originally Posted by CountinCanadian View Post
    I don't think rule 5 would change any of your basic strategy decisions. You're still always going to want to split aces.
    Agree - you're always going to split aces (with the possible exception of extremely low counts in a DD game). So just view the option to DAS as a sweetener - definitely improves the SCORE of the game.

  10. #10
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    https://www.blackjackinfo.com/blackj...rategy-engine/

    Complete basic strategy generator for any rules you wish to plug into it.

  11. #11


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    Quote Originally Posted by James989 View Post
    Double for less is not allow rule, the wizardofodds proposed strategy for a specific hand (A, 3) vs Ace is DOUBLE, do you think that it is correct(instead of STAND) ? Can you/anyone justify it with actual EV ? Thanks
    See http://gronbog.org/results/blackjack...litAces.6.html which is the same strategy generated independently by me.

    lds means to double for any amount but for a little as possible, otherwise stand
    dls means to double for any amount but for as much as possible, otherwise stand
    ls means to double for less only of you can do so for less than the critical fraction of your initial bet.

    If you hover your mouse over the data in a given cell, you will see the expected value of each available action. In the case of A,3 vs A, you will see

    Double for zero (theoretical) has an EV of -0.31 or -31% of your original bet
    Double for the full amount has an EV of -0.62 or -62% of your original bet
    Double for other amounts will have an EV between these two extremes
    Stand has an EV of -0.66 or -66% of your original bet

    This is why the strategy for this hand is to double for as little as possible. It is a defensive play. Basic strategy would be to hit, but you don't have that option. The next best option is to pay as little as possible to take a card. The less you can double for, the closer this becomes to hitting.

    Of special note are A,6 vs T and A and A,7 vs 9 and T. For these hands you double for less only if you can do so for less than the critical fraction of your original bet, otherwise stand. Hovering your mouse over A,7 vs T you will see that the critical fraction is 4.86%. That is, if you had bet $100, you would need be able to double for $4 or less.

  12. #12


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    Speaking of the site itself, https://www.blackjackinfo.com Is not assessable to me any longer because I keep getting a message that it is not a secure site. This is the full message I get.


    This site can’t provide a secure connection

    www.blackjackinfo.com uses an unsupported protocol.
    ERR_SSL_VERSION_OR_CIPHER_MISMATCH



    Hide details


    The client and server don't support a common SSL protocol version or cipher suite. This is likely to be caused when the server needs RC4, which is no longer considered secure.


  13. #13


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    I can post there. I'll let the moderators know.

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