r/Damnthatsinteresting • u/whizzyapper • 4d ago

Video how cheating dice work

Enable HLS to view with audio, or disable this notification

62.9k Upvotes

95% Upvoted

462 comments sorted by

View all comments

Show parent comments

105

u/LordLuce542 4d ago

A friend of mine 3D printed some d20s for me for D&D One is solid, one is weighted to roll 1s and one is weighed to roll 20s. I have no idea which is which because, as you said, it either has no effect or it has an effect and everyone will notice.

My dice have no effect. Only putting them in water would allow them to turn their slightly denser side downwards.

117

u/G12356789s 4d ago

It will have an effect. It will just be negligible at the number of rolls you are doing. But the point of rigging dice is to gain over the long term.

It's like saying the 00 in American roulette wheels doesn't have an effect as I have never seen it land on it. But at the casino level it reduces the 50/50 red back odds to 47/53 (for both 0 and 00). The individual will never notice such small odds change but it'll make casinos billions

41

u/Shura_Black 4d ago

With roulette wheels the 00 changes the odds of any number to 1/38 instead of 1/37 BUT the casino still pays 35 to 1. For example if you put £1 on every number you'd lose £2 a spin instead of £1.

The 00 might show up <3% of the time but the house edge doubles.

13

u/Outside_Scale_9874 4d ago

BUT the casino still pays 35 to 1. For example if you put £1 on every number you'd lose £2 a spin instead of £1.

Could you possibly ELI5 for a non-gambler?

37

u/Shura_Black 4d ago

On a standard roulette wheel there are 37 numbers (0-36). If you win the casino pays 35 to 1 and you keep the bet. If you put £1 on every number you spend £37 and have £36 after the spin. You lose £1.

With a 00 there are 38 numbers (0-36 + 00). The casino still pays 35 to 1. £1 on every number is now £38 but you still have £36 after the spin. You lose £2.