This is our 3rd "One layout" project. It has been several years since we tried this the last time. This time the challenge is a "One layout Sudoku". We (Nikoli) specified just the position of the disclosed numbers and the authors made their individual Sudokus on their own. Here we have 20 of these puzzles.
You will find there are some similar parts in the different puzzles, that's because the layout is the same. And, you may find parts that are hard to solve. But it is only in this kind of project you will get at taste like this. Try them out, do it cheerfully, enjoy.