The GameMaster's Blackjack School
Lesson 18: Advanced Single-Deck Blackjack, Part 1

While much of card-counting is a science -- the science of
mathematics -- it all takes on something of an art form when playing
at a single-deck game. True count conversion is difficult to do
quickly, large bet spreads (over 4 to 1) are difficult to obtain and
it's hard to keep an accurate count at a game which is dealt
face-down when you're used to counting where all the cards are face
up. Despite that, I really urge you to learn how to play single
deck and, instead of banging your head against the multiple-deck
games in your area, save your money and take 2 or 3 trips to Reno
each year. No, I'm not in the employ of the Reno Chamber of
Commerce, but I can tell you that it's a great place to make $$$ at
the Blackjack tables, it's relatively inexpensive and typically very
easy to get to from all over the United States. Sure their rules,
for the most part, suck (only double on 10 and 11, no double after
split and the dealer hits A-6) and that gives the casinos the same
.5% edge off the top that you're fighting now, but it takes just one
+1 card to get you even with the house and that's the real appeal of
single-deck. I should mention that some casinos in Reno (as well as
in Tahoe and Laughlin) allow double on any first two cards, so the
casino edge is dropped to about .2% and that's a very beatable game.
The key to evaluating good single-deck play is how many cards
you'll see before a shuffle. If you can find a game with 60%
penetration and get away with a 5 to 1 betting spread, it's fairly
easy to obtain a long term winning rate of 1.5% of all the money you
bet, just by playing basic strategy and varying your bets according
to the count. If you also modify the play of your hand according to
the true count, a win rate which approaches 2% is possible. That's
serious money Blackjack fans, so the effort is worth it.

Which Counting System?
I use two different systems for counting cards; the Hi/Lo for
multi-deck play and the 'Hi-Opt 1' system for single deck play.
The latter counts 3-6 as +1; 7,8,9 and ace as 0 with 10s as -1.
Since there are only four aces to track in a single deck game, I
find omitting the ace in the count improves the play of the hand,
yet I can still 'adjust' the count for betting purposes. Let's talk
about a side count of aces for a moment. We expect to see one ace
per quarter-deck played in a normal distribution, but of course that
doesn't always happen. For example, if a quarter deck has been
played and no aces have come out, the remaining deck is 'rich' one
ace. I can -- for betting purposes -- temporarily add +1 to the
count, yet for playing purposes the true count without adjustment is
correct. Got that concept? If a quarter-deck has been played and 2
aces have come out, the remaining deck is 'poor' by one ace, so I
would lower the count by 1 (that is, 'add' a minus 1 to the count )
just for betting purposes, since my opportunity to receive a natural
has decreased. This is a very powerful addition to your game, but my
advice is to just use it in single-deck play because an ace
adjustment is very taxing, mentally.
If you want to learn the Hi-Opt count, use the same techniques I
showed you for learning the Hi/Lo count. All of my advanced
techniques will, however, be based upon the Hi/Lo system, since that
seems to be the method most of you are using.
The most difficult aspect of single-deck play is computing the
true count. First you must 'calibrate' your eyeballs for
measuring the number of cards which have been played. Today most
casinos have the dealer place the discards in a rack to the side;
unlike the 'old' days when they put the discards underneath, so deck
estimation is easier. The really tough part is the division which is
required. In a multideck game, we're almost always dividing one
wholre number (the running count) by another number which is at
least 1. Admittedly, some people have a problem of dividing 17 by
2.5 qucikly, but it doesn't take long to get used to. In single
deck, you're always dividing by a fraction or decimal and that's not
easy. For example, if you're at a single-deck game and a
quarter-deck has been played, with a running count of 3, the true
count is 3 divided by .75 = 4. That's actually an easy example. Try
dividing a running count of 5 by .5. The answer is, of course 10,
but how many of you wanted to say 2.5 or 1? Only practice will make
this an automatic process.

Homework

Continue learning the decision numbers for Hi/Lo basic strategy
variations in the multiple deck games. For the 'overachievers' out
there, start learning the Hi-Opt 1 count.

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