Advanced Single-Deck Blackjack, Part 1
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.
