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Old September 29th, 2005, 09:45 AM
tedloc tedloc is offline
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Join Date: Sep 2005
Location: San Diego
Posts: 224
Default Late surrender 17 vs. dealer Ace

On your Basic Strategy chart you recommend Surrendering 17 vs. dealer Ace. I play on a 6 deck, dealer hit soft 17, late surrender game. According to your dealer probability charts the dealer will bust 20% of the time. If I make 100/$10 bets, I will get bact $500. If I use your dealer probability chart I will win 20 hands when dealer busts/push on 8 hands/lose on 70. According to my math, there is no edge either way. What did I do wrong?
Old September 29th, 2005, 10:13 AM
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KenSmith KenSmith is offline
Join Date: Mar 2005
Posts: 2,118

Rounding is the difference.

First, of your 100 hands, you say you'll win 20, push 8 and lose 70. What happened to the other two? :D

Using the Dealer Outcome Charts at this site without rounding:
6 decks, H17, standing with 17vA:
Of 100 hands, you'll win 20.13, push 8.28, and lose the rest 71.59.
The net loss is 71.59 - 20.13 = 51.46 * $10 = $514.60. That's worse than the $500 loss by surrendering.

By the way, if some of you reading this are wondering, surrendering 17vAce is only appropriate when the dealer hits soft 17.

For the really nitpicky, there is some inaccuracy caused by using the dealer outcome charts this way, because they ignore the effect of the two cards making up the player's seventeen.
Slightly more accurate expected values (6 decks, H17):
Standing with T7vA = -0.5138
Standing with 98vA = -0.5117
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Old September 29th, 2005, 10:23 AM
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Mikeaber Mikeaber is offline
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Join Date: Mar 2005
Location: Wichita, Ks
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Ken, do all of these projections assume Double after Split?

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