Knightless district
(Published on 16. October 2025, 16:25 by Sfayne)
Erratum: the original Sudokupad link was missing the sub-rule that digits aren't allowed to repeat in a cage, so a new link with correct rules has been shared
Normal Sudoku rules apply.
- Antiknight: Two identical digits may not be a chess knight’s move apart.
- Killer Cages: Digits in cages must sum to the small clue in the top left of the cage. Digits may not repeat in a cage
- Renban Lines: Digits along a purple line form a set of consecutive numbers in any order.
- German Whisper Lines: Two adjacent digits along a green line must differ by at least 5.
Original Sudokupad link (identical, except it's missing the rule that digits aren't allowed to repeat in a cage)
Solution code: Row 1 followed by Column 6 (no space in between)
Comments
on 24. October 2025, 09:55 by snuuba
Closer to 4 stars for me. Logic vice very nice, I really liked how the bottom three boxes interacted. The only downside is too long solution code. Probably the only reason why this puzzle does not have 9x% rating, which it deserves as a puzzle. Many thanks for sharing.
on 19. October 2025, 03:58 by Sfayne
@adalg Thanks for noticing and sharing the inconsistency. The mistake was in the rules, and this page as well as the Sudokupad pages have been edited accordingly.
on 19. October 2025, 03:52 by Sfayne
Both this page and the Sudokupad page were missing the standard subrule that digits aren't allowed to repeat in a cage. I edited this page to add the rule, and provided a new Sudokupqd link.
on 18. October 2025, 17:38 by LeaVulpina
I wonder if I missed something, because I really struggled through last part of the mid-solve, but after that, it was a breeze. Really enjoyed this!
on 18. October 2025, 01:36 by adalg
I really enjoyed the puzzle. Just in case you weren’t aware of it: In the sudokupad link, digits are prevented from being repeated in a killer cage but this is not stated in the rules.
on 17. October 2025, 16:37 by BorisTheSnake
Nice solve, but felt harder than a 3*, unless I missed something simple. Also, no need for a complex solution code, I suspect those are the reasons for the low rating.
on 16. October 2025, 22:40 by ___
very enjoyable solve path. thanks sfayne!
on 16. October 2025, 17:41 by m0rkoli
Thank you! Lovely puzzle!
