Using the Blackjack Dictionary

Previous PageNext PageTHE ENCYCLOPEDIA OF CASINO TWENTY-ONE


Word and term headings are always in larger
bold type.

A Natural !blackjack (BJ). 1) Common reference to the game of twenty-one, a card game played between a dealer and one to seven players. Also called vingt-et-un, pontoon, and van-john. 2) When the player’s first two cards are an ace and any ten valued card. Also called natural and snapper.    In casino twenty-one a blackjack is an automatic winner unless tied by a dealer blackjack. Typical casino rules pay player blackjack wins at 3 to 2. (e.g., a $5 bet will win $7.50.) If a blackjack always wins but is paid at even money the basic strategy player is at a loss of about 2.1%. If paid at 2 to 1 the player has an advantage of about +2.3%.  The origins of the game of blackjack are somewhat uncertain but it is known to have been played in this country early in the eighteenth century. It is also said to have been the favorite game of Napoleon. Only in relatively recent years has it been called blackjack.
[ http://www.BJRnet.com ]
[1875 American Hoyle ??? ]
[ 38 Asbury Sucker’s Progress 49 ]
[ 80 A Look at Blackjack in the 1930’s C&S V.13, 29 ]
[ 1887 U.S.Playing Card Official Rules 228 ]

Cross reference items are in bold type.

References are enclosed within [ ] brackets and may include a HTML link.

POINT COUNT STRATEGIES

A 2 3 4 5 6 7 8 9 10BC = Betting Correlation in percent.
X X X X X X X X X X
Where x is the card count value used.
PE = Playing Efficiency in percent.

NOTE: The above indices (BC and PE) were calculated independently by the author using the methodology as described in Peter Griffin’s The Theory of Blackjack and Arnold Snyder’s The Blackjack Formula. The effects of card removal, which are used in the calculations, are based on single-deck Las Vegas Strip rules with 20 cards remaining.

EFFECTS OF CARD REMOVAL (%)

 ACE2345678910
BETTING = -.61.38.45.55.69.46.28.00-0.18-0.51
PLAYING = .25.30.43.62.85.61.58.22-.26-.90

RULES AND RULE VARIATIONS

PA = Approximate player advantage in percent.
HA = Approximate house advantage in percent.

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