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 Post subject: D20 preference?
PostPosted: Sun Jan 06, 2008 9:05 am 
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I have noticed that there are two main types of 20 sided dice. The kind that comes with the game that has a 2, 8, and 14 around the 20 and the type that has a 7, 14, and 11 around the 20. Does anyone know if DCI has a ruling on this? When you play, do you have a preference? I don't have any big stat tests or anything, but the 7, 14, and 11 kind sure seems to out perform the the other when it comes to 11 or higher rolls.

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 Post subject: Re: D20 preference?
PostPosted: Sun Jan 06, 2008 10:20 am 
Really Cool Alien from a Cantina
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I've never noticed a difference. I'll check mine when I get home.

I just know that the total of opposing sides should equal 21, and not be a roll down die.


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 Post subject: Re: D20 preference?
PostPosted: Sun Jan 06, 2008 11:09 am 
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As far as I know the only rules for D20's are you can't use one of the Magic countdown ones.

I'll have to check my D20's to see which numbers are around the 20.

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 Post subject: Re: D20 preference?
PostPosted: Sun Jan 06, 2008 11:54 am 
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I noticed the difference, but have not kept track which does better.

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 Post subject: Re: D20 preference?
PostPosted: Sun Jan 06, 2008 12:07 pm 
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I checked mine and 14 out of 15 have the 2, 8, and 14 around the 20.

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 Post subject: Re: D20 preference?
PostPosted: Sun Jan 06, 2008 12:18 pm 
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I'm pretty sure the only DCI rule is that the total of the opposing sides has to be 21.

Though on most of them one of the numbers next to 1 is 19, one of the numbers next to 19 is 3, one of the numbers next to 18 is 4 and so on. Based on this pattern the 2 would logically be next to the 20.

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 Post subject: Re: D20 preference?
PostPosted: Sun Jan 06, 2008 12:20 pm 
Ugnaught Master!
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From what I have learned, the opposite sides must equal 21. This is what is called a "truly random die." Then there are ones where the big number are grouped together. In a test, these dice typically roll higher. It doesn't seem like it would, but it has been put through a test.
I had to give up 8 or so d20's because they weren't truly random. The ones that Jim gave us at Gencon followed this rule, and I have followed it for a very long time.

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 Post subject: Re: D20 preference?
PostPosted: Sun Jan 06, 2008 9:07 pm 
Warmaster
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Seriously
None of you LOOKED!?

From 603 point 2
Quote:
A 20-sided die (d20). Dice must not be especially large or small. Players may not use Spindown™ dice or any dice that have all of the high numbers in a cluster together.


there are basicly 2 major dice companies
Chessex
and 'the other one'...

Chessex are the "official" standard, as they have the patent on the "Random" die matrix
as discussed above

the 'other', well....

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 Post subject: Re: D20 preference?
PostPosted: Sun Jan 06, 2008 9:18 pm 
Ugnaught Master!
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The Madman wrote:
Seriously
None of you LOOKED!?

From 603 point 2
Quote:
A 20-sided die (d20). Dice must not be especially large or small. Players may not use Spindown™ dice or any dice that have all of the high numbers in a cluster together.


there are basicly 2 major dice companies
Chessex
and 'the other one'...

Chessex are the "official" standard, as they have the patent on the "Random" die matrix
as discussed above

the 'other', well....

However, I bought a dice set at Gencon from Chessex. I had to return the d20, b/c it wasn't totally random! My clear red die is slightly a different shade, b/c it wasn't from a full set.

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 Post subject: Re: D20 preference?
PostPosted: Sun Jan 06, 2008 9:33 pm 
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Wow, I had never heard of the 21 opposite side deal. I have about 10-15 20 sided die I picked up playing Magic the last 10 or so years. I started playing minis around BH and bought most of my stuff online, so until the last starter was the first time I ever had a dice from WOTC. About 3/4 of my dice are of the 7, 11, 14 and the sides don't add up to 21.

They are:
1 and 20
2 and 12
3 and 17
4 and 16
5 and 19
6 and 14
7 and 13
8 and 18
9 and 15
10 and 11

The WOTC one has:
1 and 20
2 and 19
3 and 18
4 and 17
5 and 16
6 and 15
7 and 14
8 and 13
9 and 12
10 and 11

So, I guess there is a difference. I guess I'll have to roll each one 100 times and see what happens. I would definately feel bad if I have been doing something illegal the last couple of years to my friends. I just didn't think it was that important for me to spend time and money tracking down a crappy looking orange WOTC dice.

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 Post subject: Re: D20 preference?
PostPosted: Mon Jan 07, 2008 9:27 am 
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Fool wrote:
To make it truely random you have to roll it 10,000 times in a controlled environment. :snowtroop:


Yeah, I don't think I need to know that bad. :lol:

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