I think https://en.wikipedia.org/wiki/Wayne_Gould https://en.wikipedia.org/wiki/Wayne_Gould is a good inspiration. Wayne Gould was a retired judge from Hong Kon

I think https://en.wikipedia.org/wiki/Wayne_Gould https://en.wikipedia.org/wiki/Wayne_Gould is a good inspiration. Wayne Gould was a retired judge from Hong Kong and learned to program and eventually launch the modern Sudoku craze. My wife is an acquaintance of his ex-wife and it was amusing to hear about his progression - she was the tester for the puzzles he generated and he rated the difficulties of the auto-generated puzzles by timing how fast she solved them. :)