Ok, I might as well go first: I wish I could draw. Not at the level where I could make photorealistic portraits, but I’ve always been envious of those who are able to scetch something together in a few minutes that perfectly captures what they want to convey. Sometimes words aren’t enough to express what I want to say, and for those situations I would love to have a simple drawing do the talking for me.
To be fair, I’m a decent programmer: I spend a significant portion of my workdays programming all kinds of things. Writing a program to generate sudoku’s with a unique solution, without copy pasting a bunch of algorithms, but actually making it all up yourself definitely sounds non-trivial to me.
(Read: That sounds like a really hard beginner project, and you should be proud for even trying, and you shouldn’t give up :) )