Randomize a List problem

[pier4r]

Info. If I am not wrong, in this thread https://www.hpmuseum.org/forum/thread-8555.html and this thread http://www.hpmuseum.org/forum/thread-8209.html we already analyzed with DavidM that one of the originally mentioned "randomize list" was not random enough, or incorrect.

This because I was making a solver of a little game, where numbers and operators needed to be combined to get a certain number. The search was random and sometimes it took extremely long. Checking the frequencies, there were some permutations that were very rare or some elements weren't shuffled at all. At the moment I do not remember exactly were the discussion was.