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 Backgammon

Backgammon and variants.

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1. mája 2010, 20:22:10
Thom27 
Subjekt: Re: Most games are begin with same rolling dice numbers..
pedestrian: This is well possible, I must only download more files. I'm working on it...

I'm also going to do a chi-square test, which calculates a probability for an event to occur by coincidence, under the assumption that the dice are ok (equally distributed and independent).

1. mája 2010, 21:39:00
wetware 
Subjekt: Re: Most games are begin with same rolling dice numbers..
Zmenené užívateľom wetware (1. mája 2010, 21:47:11)
Thom27: I agree, and have spent an inordinate amount of time analyzing results here.  (I wish it were easier to do, or that the flaw was ALWAYS evident, or the underlying pattern easier to discern.)  I'll continue playing less and less here, until it's remedied.  (I want to spend more time playing and studying--not investigating an unusual system flaw.)  I'm generally an outspoken skeptic of various "dice cheating" claims, but what's happening here is too much of an outlier to be dismissed cavalierly.

I also tried (unsuccessfully) to identify WHEN this skewness began.  I hoped that by doing so, I might help the powers-that-be to identify some code or procedural change that might have triggered it.

2. mája 2010, 14:36:34
moistfinger 
Subjekt: Re: Most games are begin with same rolling dice numbers..
wetware: The dice is a total joke on this website. It just doesn't feel right. I have never been one to whinge about backgammon dice before playing on Brainking. I know it is supposed to be random but it just isn't, it is skewed.

2. mája 2010, 14:46:59
Pedro Martínez 
Subjekt: Re: Most games are begin with same rolling dice numbers..
moistfinger: However, it is quite surprising because BK uses a very sophisticated system to generate the dice. :)
http://www.youtube.com/watch?v=7n8LNxGbZbs

2. mája 2010, 15:33:43
grenv 
Subjekt: Re: Most games are begin with same rolling dice numbers..
Pedro Martínez: Great machine, and here was i thinking they paid 1000 people to sit at their cubes and roll dice!

If there is a defect it would seem not to be the random number generator but that the code doesn't use the generator in the particular case mentioned, but instead just gets the last number... sounds like a caching problem?
I wonder if those games were played with 2 people on the same computer? moves happening very quickly? We need more of this type of data most likely, in order to replicate the problem.

3. mája 2010, 18:22:39
moistfinger 
Subjekt: Re: Most games are begin with same rolling dice numbers..
Pedro Martínez:
LOL

2. mája 2010, 04:07:56
grenv 
Subjekt: Re: Most games are begin with same rolling dice numbers..
Thom27: That's a wierd bug... increasing the odds of the second roll equaling the first? What kind of twisted algorithm would cause that?..?..

Unless you wrote code that generated a random number first, then used that to determine whether to roll or just use the first result, ... but why write that sort of code?? It just doesn't seem like a plausible defect.

Any ideas?

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