I was going to dig into this myself this week. Instead I took a few minutes and found a starting point. It’s an FAQ last updated in 2006 for the game:

https://gamefaqs.gamespot.com/nes/578219-mahjong/faqs/45452

I’m looking forward to start playing. Most likely towards the end of the week.

Fantastic! Thanks. That's what I thought, but I didn't want to assume anything. :-)

Is it allowed to use save states to re-run particular RNG seeds, or is a proper "Reset" (Game reset, not emulator reset) required between attempts? Thanks!