I suspect that the dice in Dice Poker are broken: a couple of times I have observed that the re-rolled dice didn't change.
This is difficult to prove, however. Unfortunately the movelist only displays the numbers after the last roll. So one had to manually copy all re-rolls to do a statistical analysis.
(hide) If you click on a person's name and then click Finished games you will have a list of games that have been completed, then click on the name of the game to get a summary of all of these games, then click on the name of the game again and you will have a game to view and analyze. (Servant) (show all tips)