GENERIC BASIC STRATEGY
THE HIGH-LOW SYSTEM
HOW TO WIN WITHOUT GETTING KICKED OUT
Effect of Rules on Blackjack Strategy
Some dealers use one deck, some use six, and some use other multiples. Decision numbers vary only slightly with the number of decks used. The tables in this chapter are based on four decks, but are approximately correct for any number of decks. One-deck decision numbers are slightly different from multiple-deck decision numbers, but four-deck decision numbers are almost exactly the same as decision numbers based on other multiples such as two, six, etc.
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Some decisions are very close, and different methods of calculation can yield slightly different results.
You should truncate, and not round, when using these tables. Examples: If the count per deck required to double down is +4, then double down only if you have a count per deck of +4 or more, and do not double down if your count per deck is say 3.8.
If a count per deck of-1 is required to stand, then stand if your count per deck, truncated, is -1 or higher (Zero is higher than -1, and a count per deck of -1.8 is truncated to -1).
At some casinos dealers stand on soft seventeen, whereas at other casinos dealers hit it. The discussion of this chapter initially assumes that the dealer stands on soft seventeen, and then also covers what to do when the dealer hits soft seventeen.
Extremely high or low counts per deck are encountered infrequently in actual casino play; so memorizing extremely high or low decision numbers probably is a waste of time. If you follow my advice (coming later in this website) of leaving a table on a negative count, you will seldom encounter counts per deck of less than -1.
Therefore, the tables in this website include decision numbers only from -1 to +6.
The decisions are discussed in the order in which you make them at a casino: insurance, surrender, pair splits, double down, and hit or stand. The decision numbers in this site are derived for multiple decks with the dealer standing on soft seventeen, and are also very close for one deck or with the dealer hitting soft seventeen. You must memorize them; when you are playing blackjack in a casino, you can refer to these decision numbers only in your head.
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