Pocketdice claims to be provably fair. And they are - sort of. Ish.

Where I find fault in it is in the fact that unlike card-based games that have a static deck that is shuffled and then 'cut' or re-shuffled by a client seed, pocketdice makes a list of 30 "random" numbers from 1-6. Those are then shuffled, then client-seed shuffled.

No big deal, right? Totally fair, totally provable.

Except for the fact that your roll tendencies can be tracked. Maybe you ALWAYS go "Higher than 8".

So what if pocketdice's 30 "random numbers" have 9 1's, 7 2's 5 3's, 5 4's, 3 5's and 1 6?

That seriously skews the odds in pocketdice's favor. Which is absolutely not provably fair. Real dice have an equal chance to land on any number. When your array is is [1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 5, 5, 5, 6] you do have a chance to roll higher than 8, but it's pretty slim.

When I started looking at it tonight, the first thing I did was click on a random past bet to see the roll array. It had 7 6's in it. If it's truly fair, in a 30 number array of 1-6, each number should be represented 5 times.

That being said, as I typed that, I realized something - PD rolls 2 dice. Why the hell is it an array of 30 instead of 12? You don't need that many.

Unless you're skewing the odds.

Ever since 999dice effed me over and I exposed them (to no avail, their profit is supposedly up 1000 BTC since it happened about 2-3 months ago. Funny. How does a .1% edge site make 1000 BTC in 2-3 months?) I've been taking a really close look at all the gambling sites I come across.

Just trying to hold everyone to a standard. Not trying to be a dick. If it's an oversight that pocketdice never realized, they will fix it.

If not, well, I sure as hell wouldn't bet there.