Here's playable mahjong in Morrowind, boss, just like you ordered

I like to think I'm a relatively smart person; I can often remember most of my ABCs and it only takes me around five seconds to add seven to something. But one thing will remain forever beyond me: mahjong, the Chinese tile-based game that I mostly know as 'that one Yakuza minigame I simply don't interact with.' The fact is: it's impossible to learn. The other fact is: I've never seriously attempted to learn it. These facts are unrelated, to my mind.

Anyway, I may have to finally learn it...