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Lou Zocchi» Forums » General Creator Forum

Subject: Recreating Zocchi's stacked d20 photograph rss

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Alan De Smet
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I'm sure a lot of people here have seen Zocchi's old black and white photograph of stacks of d20s that he brought to conventions to show how superior GameScience dice are. When it was retired a few years ago, it was clearly pretty old. So my wife and I set out to recreate the photograph with modern dice. The photograph, measurements, and some analysis are here.
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Francisco Bustos
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Very interesting! Thanks.
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Max Way
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Thank you for the detailed article!
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Guest Starring...
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Very interesting!

Those results certainly seem extreme, though. 29% is ... well, it's a heck of a lot of 1s, enough that it should become noticeable to people rolling lots of d6s, and yet that's not the case.

I've played a number of games that involved rolling buckets of cheap, rounded d6s (just like many of you), and while I couldn't tell you just how random they were or which numbers they favored, I'm positive that no single number came up nearly a third of the time - especially not 1, which tends to stand out.

Again, an interesting read on a fun topic, but for now, I'll take that 29% with a (rounded) grain of salt.
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Martin Ralya
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Good lord this is impressive! I've always wondered about photos, and after buying some GS dice and inking them last year, the flashing and the lack of precision of my "inking" also had me curious about whether I was really getting more precision or just interesting (and in some ways annoying) dice.

I look forward to your rolling tests, assuming you wind up doing them.
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Yoki Erdtman
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I loved the article, thanks for the hard work.
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My own completely unscientific process for picking out the d20 I use from my collection was to put all of them with the 20 facing up (so the 1 on the bottom) and feel how wobbly they were by pressing down with my index finger. There were definitely differences even in dice from the same manufacturer. It's only one side but if you want to get a crit you don't want a convex 1.

I have a reputation for bad luck in my group. I realize it's most likely confirmation bias, but I did play a D&D fighter for 6 months without getting a critical hit. I tend to pay attention to these things like dice construction because of this. Might pick up a gamescience die after reading this.
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Dave Bernazzani
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Very cool!

I've seen Lou's speech and it's a great way to pass 20 minutes. But I still dislike Game Science dice. Sharp edges. Flashing. Colors suck. Inking sucks (or, worse, I have to ink them myself). I'll stick with my beautiful Koplow sets although I have several sets of GS dice in the closet.

Dave
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E Decker wrote:
Very interesting!

Those results certainly seem extreme, though. 29% is ... well, it's a heck of a lot of 1s, enough that it should become noticeable to people rolling lots of d6s, and yet that's not the case.

I've played a number of games that involved rolling buckets of cheap, rounded d6s (just like many of you), and while I couldn't tell you just how random they were or which numbers they favored, I'm positive that no single number came up nearly a third of the time - especially not 1, which tends to stand out.

Again, an interesting read on a fun topic, but for now, I'll take that 29% with a (rounded) grain of salt.

Oops, got my signals crossed there. My skepticism applies to an article linked to by Alan, not to any of his work. Alan's article is terrific.

Apologies.
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