[verve_rat]

Not really, as I understand it. The big blow up of sudoku books full of puzzles came about because some guy figured out how to create them with a program, rather than by hand. Earned the guy millions I believe.

Edit: Wayne Gould https://en.m.wikipedia.org/wiki/Wayne_Gould

[mrloba]

People who are more into it usually prefer human made puzzles since they often have a logical path that you're supposed to find, which can be quite satisfying. Generating sudoku puzzles is actually quite easy. Just put random numbers on the board until you have a unique solution. It runs surprisingly fast. The tricky part is deciding on the difficulty. I made a program that would identify all the different sudoku techniques needed to solve each puzzle (x wings, pairs, all the way up to chains), then set the difficulty based on what techniques were required. Code is here for anyone interested: https://github.com/magnusjt/sudoku/ Sadly I don't think anyone would pay millions for this anymore