Once upon a time, I decided to create a complete Sudoku application as my grandma wanted to play some Sudokus on her computer, and I wasn't satisfied with the free offers available. The project went on for some years and finally led to sudoku.tn1ck.com - a free and open source Sudoku app without any tracking. While working on it, I went down the rabbit hole of generating Sudokus of a specified "hu