Normal Sudoku rules apply. Digits separated by a black dot must have a ratio of 1:2. Digits separated by a white dot must have a difference of 4. Not all dots are necessarily given.
Happy birthday to an exceptional Mom!
Solution code: Row 8 followed by column 8, no spaces.
on 5. November 2023, 02:25 by PinkNickels
Excellent concept--well executed!
on 12. August 2022, 10:49 by ForzaFcu
Amazing! so much fun to solve this one
on 5. February 2022, 16:27 by rhodri
Beautiful puzzle!
on 4. February 2022, 19:04 by abed hawila
Very nice and smooth puzzle, and Happy Birthday to your Mom!
on 4. February 2022, 12:00 by Chelo
Thank you for setting and ... Happy Birthday!.. :)