Sudoku Variants Series (458) - Divisible Neighbours
(Published on 30. January 2026, 06:00 by Richard)
For this Sudoku Variants Project I have planned to publish a unique Sudoku variant every week.
Divisible Neighbours
Inspiration for this type comes from Sudoku GP 2026 (Turkish round).
Solve online in
I will see how long it takes before I am running out of ideas.
Apply classic sudoku rules.
All cells containing a digit that is a divisor of the sum of all the digits orthogonally adjacent to it are shaded grey. (I.e.: A 4 that has 3,7,2,8 adjacent to it must be in a grey cell since 3+7+2+8=20 can be divided by 4; a 3 in the corner with 2 and 9 as neighbours is in a white cell since 2+9=11 cannot be divided by 3.)
Sudokupad (no answer check)
Sudokupad (with answer check)
or
Penpa+.
Solution code: Column 6
Comments
on 13. February 2026, 18:08 by Franjo
Interesting constraint. Thank you very much for creating and sharing this lovely puzzle - and for remembering me that I hadn’t solved it yet.
on 31. January 2026, 00:12 by dzamie
That was fun! Got some pretty interesting decisions in which cells to focus on.
on 30. January 2026, 08:21 by Piatato
Lovely!
