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jwblue
jwblue
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February 20th, 2011 at 9:31:50 AM permalink
Are the odds of stopping on each position on a reel always equal or can the RNG programmed to land on certain positions a higher percentage of the time?

For example. If there are 100 positions on a reel, are the odds always 1 in 100 for each position?
Ayecarumba
Ayecarumba
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February 23rd, 2011 at 12:35:00 PM permalink
The odds of any position stopping on a reel are equal. According to this WoO article, each reel has a separate RNG determined stop.
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FleaStiff
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February 23rd, 2011 at 12:38:27 PM permalink
So they no longer have a "near miss" tendency built in to them wherein it won't stop ON the Red Seven but will stop NEXT to it?
Ayecarumba
Ayecarumba
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February 23rd, 2011 at 1:05:10 PM permalink
Quote: FleaStiff

So they no longer have a "near miss" tendency built in to them wherein it won't stop ON the Red Seven but will stop NEXT to it?



Hehe... didn't say that. I am certain that the "near miss" vitual reel stops are mapped in the RNG "lookup" table to appear more often. In other words, the odds of a losing combination coming up are randomly determined, but what is displayed when a particular combination occurs is mapped to show the "near miss" reel stops more often than the "not even close" ones.

Perhaps a reminder that there are "virtual" and "physical" stops associated with each reel is in order. The odds of any "virtual" stop appearing are randomly determined. The "physical" stop (which is the "stripping" on the reel, or in other words, what is displayed on the payline) corresponds to certain "virtual" stop(s) via a "lookup" table. There are many more "virtual" stops than "physical" stops to allow casinos to adjust the payback. The WoO's slot page has all the details, including a description of how mapping the "near miss" works.
Simplicity is the ultimate sophistication - Leonardo da Vinci
DJTeddyBear
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February 23rd, 2011 at 1:05:12 PM permalink
This was discussed recently, here.

No. The symbols on the physical reel do NOT have an equal chance of appearing. Yes, a near miss can be programmed into the machine by the way the virtual reel is sequenced.
I invented a few casino games. Info: http://www.DaveMillerGaming.com/ ————————————————————————————————————— Superstitions are silly, childish, irrational rituals, born out of fear of the unknown. But how much does it cost to knock on wood? 😁
MathExtremist
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February 23rd, 2011 at 4:32:03 PM permalink
Quote: jwblue

Are the odds of stopping on each position on a reel always equal or can the RNG programmed to land on certain positions a higher percentage of the time?

For example. If there are 100 positions on a reel, are the odds always 1 in 100 for each position?



Traditional 3-reel single line games are weighted according to the technology in the Telnaes patent: a longer virtual reel is mapped (unequally) to a physical reel. The physical reels normally have 22 stops or so, due to the physical constraints of fitting a spinning reel into the cabinet. The virtual reel may have 64 or more stops.

Multi-line video slots are not weighted so each stop is equally likely. Weighting the reels in a video game is not only unnecessary, but it makes the paylines have different payback percentages (and therefore, the math is a huge pain.) There may be dozens or hundreds of stops on each reel, though, and the symbol distribution over those reels is typically unpublished.
"In my own case, when it seemed to me after a long illness that death was close at hand, I found no little solace in playing constantly at dice." -- Girolamo Cardano, 1563
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