I started wondering which of the two right-hand layouts was easier to win. Wondering this sort of thing is always dangerous.

About a month and 300 games of Caliph's Tomb later (150 on each of the two right-hand layouts) I've reached the conclusion that I cannot reject the null hypothesis that the probability of winning the two layouts is the same.

The top right layout had a 70% win rate, the bottom right had a 75.33% win rate. The chi-squared test I ran produced a

*p*of .13, meaning that if the two layouts had the same chances to win, there's a 13% chance I'd get a difference as big as the 5% difference I found. (That may sound like a low probability, but the usual criteria for concluding that the two things are actually different is

*p*=.05.)

I'm torn between thinking, "Yay, no more recording wins and losses" and thinking, "Hmm, I wonder if they would still fall short of significance if I took it up to 500 games?"

Yes, I am a nerd (and a scientist) -- why do you ask?

Incidentally, if you like this style of solitaire -- which I obviously do! -- it's not the worst way to make sP in the world (provided you use one of the two easy right-hand layouts). I made 2,180,000 sP over the course of this experiment. Not staggering, but not bad given that I also had fun playing.