Keep Consecutive Friends Close
(Published on 10. February 2025, 00:07 by I Love Sleeping)
Many thanks to sirxemic for creating a custom Sudoku Maker constraint for me, couldn't have done this without it. Also, thank you 99%Sneaky, Donatello_86, MathGuy_12 and others for testing the puzzle. For the rest of you – enjoy! ☺
Rules:
- Normal sudoku rules apply.
- Negative Black Kropki: Digits separated by a black dot must be in a 2:1 ratio. All black dots are given.
- Keep Consecutive Friends Close: Every digit in the grid must have a consecutive digit in at least one of the (up to) 8 cells surrounding that digit. Important: The digits 1 and 9 are considered "consecutive" for the purpose of this rule.
The puzzle is available online via SudokuPad
Solution code: Row 8
Solved by MathGuy_12, Donatello_86 , jcgodart, Greg, nmmc123, gxorgx, 99%Sneaky, joshandreassen, DanishDynamite, SKORP17, efnenu, Joyofrandomness, ark29, DiMono, AnalyticalNinja , sedici, Chishiri, Clairitin, lune, butch02, belnovic, PuzzlePatzer, paranoid, trashghost, geronimo92, MaureenLdH
Comments
on 12. February 2025, 18:01 by PuzzlePatzer
Nice - negative constraints are quite fun :) Thanks for sharing!
on 10. February 2025, 05:44 by 99%Sneaky
A wonderfully harmonious marriage of the constraints involved. Thanks for setting and sharing :)
on 10. February 2025, 00:09 by MathGuy_12
Fantastic concept and execution! Happy I was able to test it out :)
