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"Are Your Dice Balanced?" Topic


20 Posts

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768 hits since 22 Feb 2016
©1994-2017 Bill Armintrout
Comments or corrections?

Personal logo Editor in Chief Bill The Editor of TMP Fezian22 Feb 2016 7:37 p.m. PST
Winston Smith Supporting Member of TMP22 Feb 2016 8:01 p.m. PST

I hope not, or I will have spent hundreds of dollars for nothing.

RavenscraftCybernetics Inactive Member22 Feb 2016 8:39 p.m. PST

I want the opaque chessix die!

cmdr kevin Inactive Member22 Feb 2016 8:50 p.m. PST

Dice bias only really slews the results a few points after 10,000 according to the math. Do you think you will roll you dice 10,000 times?

rmaker22 Feb 2016 10:05 p.m. PST

The problem isn't "balance". The problem is that the rounded-edged pre-inked dice are made by casting sharp-edged dice, dropping them in paint, letting them dry, then tossing them in a rock tumbler with an abrasive powder and running it until all the excess paint is removed. There is no way this can polish all sides equally. I have seen dice for sale with some faces obviously smaller than others, and even with faces almost missing.

53Punisher22 Feb 2016 11:34 p.m. PST

Gamescience dice--no question there.

Dark Knights And Bloody Dawns Inactive Member23 Feb 2016 3:14 a.m. PST

For conventions I use poker dice, easy to see and nice weight in the hand as well as no bias.

For the club I have a bucket load of game science dice.

Norman D Landings Inactive Member23 Feb 2016 3:24 a.m. PST

I have a couple of casino dice – they're very good.
Unfortunately, Vegas is a bit D6-oriented.
Despite 'Caesar's Palace' sounding like the title of a 2nd Ed. Module, you cant get a set of polyhedrals there!

MajorB23 Feb 2016 4:04 a.m. PST

No they're not. I can never get one to stand on one corner, they always fall flat onto one of the faces.

CorpCommander23 Feb 2016 8:44 a.m. PST

I can demonstrate a significant bias effect from dice in just 30 rolls. I did that last year and created a kernel density estimate of the results. Interestingly, the number with the highest bias was 5. One was the lowest. I did several trials.

The video is interesting and shows that density bias can have a major impact as well.

Dynaman878923 Feb 2016 12:27 p.m. PST

Dice bias bah! The mere act of rolling them overwhelms any bias based on the dice themselves – barring purpose made cheating dice or ones so badly warped you can see it (like some old D&D dice I still own)

darthfozzywig Supporting Member of TMP Inactive Member23 Feb 2016 12:34 p.m. PST

Dice bias only really slews the results a few points after 10,000 according to the math.

That's the difference between probability as a paper math exercise and probability as an actual physics exercise. :)

Personal logo Dye4minis Supporting Member of TMP23 Feb 2016 2:22 p.m. PST

Are my dice balanced? You bet they are! They ALL roll equally bad when I need them to roll the opposite numbers!

darthfozzywig Supporting Member of TMP Inactive Member23 Feb 2016 3:50 p.m. PST

Hahah +1 Tom

(Phil Dutre)24 Feb 2016 9:55 a.m. PST

Don't care really.

My dice are gaming dice to play a wargame. No money is involved, so I don't see the need to have casino-type dice.

Sure, perhaps a few dice roll some number more frequently than another number. But from a large pool of dice, these slight biases cancel each other out over the course of a game. It's not as if all my dice suddenly start rolling 6's more often than 1's. One die might favour 6 a bit more, another the 3, yet another the 1. I don't know what dice in my pool do that (if they do) and frankly, I don't want to know.

The only thing I do is buy new sets of dice now and then, but that's mostly for fun and esthetic reasons rather than any worries about dice balance.

Zyphyr24 Feb 2016 12:58 p.m. PST

Since the people I game with (when I can find the time) play "table dice" it doesn't matter – the off dice will end being rolled by everyone.

Personal logo Kaiju Doug Supporting Member of TMP07 Mar 2016 7:37 a.m. PST

Interesting video, however there are many other external forces at work when rolling dice in a game. One of our club members almost had a ruler thrust through his hand for his habit of "dropping" his dice. A good choice for an equalizer is a dice tower. Drop'em in the top and they all tumble out the bottom. Multiple dice thrown together removes any bias of an individual die. Also when both sides use the same collection of dice (a recommended rule for any game) any plus or minus will be applied equally. When throwing a single die, select it from a group on the table and don't allow a player to keep his "lucky" die. Sacrifice a goat before the game instead, works for me!

VVV reply18 Jul 2016 1:50 p.m. PST

"Dice bias only really slews the results a few points after 10,000 according to the math."

If your dice are really biased then it will show up before then. I tried it with some GW dice (as I had been told that GW dice were biased). Threw the GW dice a thousand times (whilst watching a film). Tabulated the result and 1's were coming up about twice as often as one would expect.

I go with Gamescience dice as good dice for gamers.

hagenthedwarf Inactive Member18 Jul 2016 3:46 p.m. PST

No they're not. I can never get one to stand on one corner, they always fall flat onto one of the faces.

Really! I have seen four dice end a roll on a point; sorry you have not seen that.

Last Hussar06 Aug 2016 10:26 a.m. PST

Are my dice balanced? Nope. They are ruddy psychotic.

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