This site claims to have an 0% edge, and even offers some promotions that would make playing profitable (the refund policy would be very profitable with a 0% edge, as you are basically "freerolling" after losing 12 consecutive bets, and you can bet the maximum amount there).

One wonders if it's just a way to attract customers, to increase their edge in the future. Or they could profit from advertising other sites. Or maybe it's a scam. Why isn't it provably fair? Because it isn't fair.

I have played much more than enough to be able to confirm that it's false that their edge is 0%. It seems to be indeed about 10% (45% chance of winning a theoretical 50% chance roll). If you don't believe me, just try it yourselves (bet the minimum every time, so you don't lose much).

I have found that one the casinos of the Gambling subforum has a much bigger edge than it claims, so I'd like to post there as soon as possible. It isn't even provably fair, because it really isn't fair. I've played more than enough to be sure about this, I have an statistically significant sample size.