After messing up my kropki series, I felt that I had to make a new hard kropki to redeem myself and replace the original hard puzzle that I messed up. I am pleased with this result and hopefully you will enjoy this puzzle.
All normal sudoku rules apply. Additionally, cells separated by a white dot have a difference of 1, and cells separated by a black dot have a ratio of 2. Not all possible dots are given.
This puzzle is also available on f-puzzles
Solution code: Columns 8 and 9
on 15. March 2021, 08:43 by cdwg2000
Very nice!
on 14. March 2021, 06:19 by glum_hippo
Knifflig aber sehr schön.