A biased wheel is one with
a defect resulting in a certain numbers being selected more
often than they are supposed to.
You can be sure that the casino sees it as a threat, even though
it is e.g. zero that is biased. If some writers find out, they
will immediately start exploiting it.
For a bias to be worth playing it must be big enough to beat
the probability 1/35 – even though the frequency - from
a mathematical point of view - is 1/37.
A defect on a wheel can be either born or a result of wear – usually
it is the last. Some defects will favor numbers. This type
is called pocket defects while other defects will give whole
sectors a higher probability.
A defect, which can result is one pocket having a higher probability,
is for example if one pocket is larger than the others. This
will off course automatically have a higher probability. However,
I haven’t seen this with newer wheels. A pocket defect
on a wheel in Germany was due to a tiny edge between18 and
22 resulting in a micro my sticking up over the number plate.
The wheel produced many “rollers”, in which case
the ball was spinning in the actual outer track. The little
edge made the ball hit number 18 to such extremity, because
it struck the small edge, and consequently the neighboring
number very few times. Both numbers exceeded 3 standard deviations
positively and negatively.
A more frequent bias is loosened edges between the pockets.
This provides more “sluggish” recoil when the ball
hits thus providing this pocket with a higher probability.
Repairmen and maintenance people speak of air pockets, such
as loose felt in the bottom of the pocket or maybe a double
layer of felt…(that’s cheating!!)
Sector bias can be caused by something called rotor wobble.
The rotor is placed on a spindle, which can be a little crooked
due to the daily or weekly cleaning where the rotor is taken
of the wheel. A defect can also occur in the rotation at the
top of the sides where the ball is spinning to begin with.
The defect in the top should produce a more frequented falling
zone. This can also be achieved if the wheel is a little out
of water. This does not produce biased numbers or sectors,
as the random results are secured by the turning of the rotor.
The wobble combined with a defect ball track at the top can
on the other hand crease biased numbers or sectors. If the
ball lands on the rotor while it is in the lower end of its
wobble (you have to imagine a plate on a stick spinning a little
crooked), the ball will have tendency to stay there, as it
has a harder time running up the plate.
A wobble can be spotted, if for example the rotor is made
of polished brass as the ceiling light is reflected. You will
quickly spot that it is not even.
Biases in a roulette wheel have a very small impact and usually
many aspects are required to match in order to play a bias
with profit. Had for example the wheel in Germany, Hittfield,
not produced rollers at all, the tiny edge would not have had
a great impact. Some of the aspects that need to be considered
are:
1. The dealer
2. Time of the day
3. The rotor speed
4. How the wheel is oriented
Ad 1. It is possible that the dealer throws the ball in a
certain way, which might give a side or backwards spin that
can affect the circulation of the ball.
Ad 2. The time of the day is important mostly due to humidity
and high/low pressure (it does actually have an impact).
Ad 3. The rotor speed is important as well, as some biases
will not occur the more the rotor is turning.
Ad 4. The casinos turn and move the wheels from table to table
frequently. If you are a pro, you spot the various strange
yet recognizable features or marks/scratches either on the
rotor or on the wooden sides.
Earlier this year, I was given the opportunity to survey a
professional bias team at close range. I played with them for
22 days and sucked knowledge like a crazed man.
At one time, we followed a wheel with 2 obvious biases on the
rotor. One, where the light reflected on the rotor, suddenly
jumped 6 inches as well as another with a slight side effect.
At the bottom of the pockets the light from the red readers
(laser automatically reading the number in which the ball rests)
reflected unevenly on some of the pockets. As a clocker this
wheel was interesting – not as a bias player – as
it had a good tilt and provided a fairly okay jump length for
the ball. My partners were more interested in the bias. They
didn’t start to play till after 2 days and approx. 700
noted spins, and it fascinated me a bit that most of the time
they did not play at all. When they did play they adjusted
7 numbers under me, when my prognosis was on number. 28. It
turned out that the sector before 28 stole many hits from the
28 sector. The ball would fall on the rotor and roll on, but
would never cross the sector ahead of no. 28. This didn’t
mean that the 28 sector never had any hits, because when the
wheel was turned the other way and the ball came from the other
side, it hit just fine. This was a bias that could not be traced
by just continually noting down numbers.
This type of bias is not so well known, as it has arisen due
to newer wheels with less deep pocket in which case the ball
spins across many numbers so to speak before it stops. Previously,
the ball would hit the rotor, and then only jump a few numbers.
My partners won USD 4,000 in the course of 2 days. They are
pros and work extremely effectively; among others assisted
by software and excel spreadsheets. Once the preparations are
finished, the games begin!
Their game is a combination of math and old-fashioned visual
tracking a la Laurance Scott, which I have mentioned in gaming
strategies and modern bias tracking. You get the prognosis
visually and adjust to the closest sector, which might have
a higher probability, if it is in the area when the ball falls – that
you know using visual tracking. If you add the numbers to a
simple Excel spreadsheet, which some of the casinos use, I
am pretty sure that the manager will start to sweat right a
way.
I estimate that they won approx USD 20,000 in the course of
the 22 days I followed them. 3 divided this. They could have
won more with higher stake money, but the question is then,
if they would not have gotten to much attention. Surveillance
and the croupiers, who - most likely - would have been told
to call “no more bets” much earlier, would probably
have hindered them.
Bias gaming is not for everyone, but is well established and
thrives even today despite Huxley Saturn wheels and Cammegh,
which should be almost perfect.
Kelly, a member of Casinoportalen.dk (our Danish sister portal),
wrote this article.
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