Board Game Arena

What is the math function used for random (on perudo). Is it pseudo ?

I never saw such number of unprobable sets on this game : http://fr.boardgamearena.com/#!table?table=14026934

So I'm wondering if its some sort of 'pseudo' or correcting algorythm

Same on my next game for like a huge ratio of (consecutive) rounds we got like 1 paco over 20+ dice and then one round with like 60% paco.

I can't speak to the randomization method used, but my guess is that it probably is just coincidence. With almost 20,000 games played there are definitely going to be some unusual dice rolls. The odds of 1 paco out of 20 dice is actually surprisingly high: 10.5%. Seeing over half the dice as pacos would be nearly impossible with 20+ dice, so if that's the case than that is certainly more cause for concern, (though it could still happen ever so often with how many games are played of this). But if it's only out a few dice (say, three out of five), then it's obviously more possible. Just some thoughts.