A quick solitaire post. (OK, maybe not quick.) A few years back I started playing a fair amount of solitaire for various reasons. Started with MS Solitaire (Klondike) and later started playing with actual cards. At the time I was shooting for a win rate of 20% (on the computer because to date I've been too lazy to mark down my winnings with cards for calculation). Bumped around 19.34% on Windows 7, but it was hard to get up to 20% without resetting statistics (which I didn't want to do) because of how many games I'd played. Then I had to get a Windows 11 machine. At present I'm pretty solidly at 21% on 3 card draw.
One observation on odds with the computer versus physical cards: OK. A few observations: First, the Windows 11 version of the game makes it clear that the deals are not truly random--it lets you pick a difficulty level. You can also pick a random deal, but the fact that you can pick a difficulty level shows that the computer is never going to be as truly random as shuffling cards. That said, if you just play the computer, you start to think the computer is cheating you, but once you've played with cards awhile, you realize the computer actually does a pretty good job of simulating the real game. And I will say, to my memory I can think of once, maybe twice, I got a game on MS Solitaire where it was impossible to play a single card. I've had that happen twice in the same week playing with cards and it just happened again this morning: three 9s, two 4s, and a red King & Queen. And the face cards were in the bottom positions (I think the King was on the table and the Queen was on 1 card). So in order to play a card, I needed to draw a black Jack or Queen, an Ace, an 8, or a 3 (I think I had black and red 4s). I did not get any of those cards. So I not only lost before I started, I couldn't even make any plays before I lost. I don't know that it is statistically significant, how many times I've had this happen with cards, compared to on the computer, but it is definitely memorable. Makes me interested in the programming and how MS "randomizes" the shuffle. (You can't truly randomize with a computing machine. You can do a pretty good job "pseudorandomizing" but for true randomization you need dice or a bingo tumbler or other physical means.)