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Thread: When to Double Down on a Soft 21?

  1. #1


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    When to Double Down on a Soft 21?

    After splitting 10's what would the TC need to be to DD on a soft 21?

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    Depends, what count are you using and what is the dealer upcard? IIRC it starts at +9 for hi lo.

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    Why would you?

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    Quote Originally Posted by Meistro123 View Post
    Depends, what count are you using and what is the dealer upcard? IIRC it starts at +9 for hi lo.
    I would only split the 10's if the dealer upcard was a 5 with a TC of 5+ or a 6 with a TC of 4+.

  5. #5


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    Quote Originally Posted by Captain Jack View Post
    I would only split the 10's if the dealer upcard was a 5 with a TC of 5+ or a 6 with a TC of 4+.
    And if the shoe is still ace rich? Further, are you slash and burn or longevity. Are you at stakes that make the invitation for the tap worthwhile, is are you talking about a $100 max bet. If the latter, why would you burn yourself out while you're still nit seasoned?

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    Quote Originally Posted by Freightman View Post
    Why would you?
    For the same reason you would make any decision in BJ - because it's mathematically the best play.

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    Quote Originally Posted by Captain Jack View Post
    For the same reason you would make any decision in BJ - because it's mathematically the best play.
    You have lots to learn

  8. #8


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    Quote Originally Posted by Captain Jack View Post
    After splitting 10's what would the TC need to be to DD on a soft 21?
    The index is even higher than doubling on soft 20. For Hi-Lo users, it is about +18. So basically you should forget about it.

  9. #9


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    The index is even higher than doubling on soft 20. For Hi-Lo users, it is about +18.
    Actually, I believe the index is more like +8 vs 6. The index for doubling A9 v 6 is only +4.

  10. #10
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    Quote Originally Posted by Freightman View Post
    Why would you?
    I agree. Part of making the right decision is about weighing certainty not purely chasing EV. Another aspect is avoiding heat. Splitting T,T draws a target on you enough already without trying to double the 21 it gets you. Part of winning is being allowed to play. How much EV is worth losing the ability to play?

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