Blackjack Rule Variations and Odds

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RETURN blackjack Ace Queen of HeartsRule Variations

A reference to the different rules that a house may enforce in a blackjack game. Such as whether to hit or stand on soft-17, whether to allow double after splitting, etc.
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BLACKJACK RULE VARIATIONS

We start with a base game! Assume 6 decks, double on any first 2 cards, no double after splitting, resplit all pairs except Aces, dealer stands of soft 17 (S-17) and no Surrender. Insurance is available and naturals pay the normal 3 to 2. The basic strategy player has an advantage of about −0.56% in this game.1)In other words, the house has an advantage of +0.56% in this game.Add the following to calculate the approximate new player advantage (or disadvantage). 2)This rule variation chart only estimates changes in player advantage. Use Norm Wattenberger’s Blackjack Odds Calculator for better results.
GOOD RULE
VARIATIONS
PLAYER
ADVANTAGE
2:1Blackjack pay 2 to 1+2.3%
1DSingle Deck
+0.50%
ESEarly Surrender vs Ace
+0.39%
ES10Early Surrender vs 10
+0.24%
2DTwo Decks
+0.20%
DASDouble After Split
+0.14%
LSLate surrender
+0.08%
RSAResplit Aces
+0.07%
4DFour Decks
+0.05%
ES9Early Surrender vs 9
+0.002%
BAD RULE
VARIATIONS
PLAYER
ADVANTAGE
6:5Blackjack pay 6 to 5 -1.36%
D11Double only on 11
-.46%
H17Dealer hits soft 17
-.20%
D10Double only on 10,11
-.09%
D9Double only 9, 10,11
-.09%
NRSNo respliting pairs
-.04%
8DEight Decks
-.02%

Footnotes

Footnotes
1In other words, the house has an advantage of +0.56% in this game.
2This rule variation chart only estimates changes in player advantage. Use Norm Wattenberger’s Blackjack Odds Calculator for better results.

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