Modulo Oblongata
(Published on 16. October 2025, 07:26 by cygne)
Modulo Oblongata by Cygne
Rules
- Normal Sudoku rules apply.
- Any group of three adjacent digits along a teal modular line must contain digits with distinct values modulo 3. (Sets with the same values mod 3 are [1,4,7], [2,5,8] and [3,6,9]).
- Digits separated by a white Kropki dot are consecutive.
- Digits separated by a black Kropki dot are in a 2:1 ratio.
Play in SudokuPad
Wanted to make something simple with a really long mod line. Hope you enjoy!
Solution code: Row 5, left to right
Comments
on 9. January 2026, 02:56 by Shuhua Milk
Nice!
on 2. January 2026, 20:01 by snuuba
So satisfying, many thanks
on 16. December 2025, 18:29 by fieryfalcon
This was wonderful! One of my first mod puzzles and I really enjoyed it
on 7. November 2025, 12:01 by Aronana
Cute Gator! I can't see it though :(
on 2. November 2025, 07:33 by TheJRMY
It took me embarrassingly long to realize it looks like an alligator. Wonderfully fun puzzle though.
on 23. October 2025, 21:27 by Treme
Excellent!
on 21. October 2025, 17:45 by PancakePie
Fun and expertly built! Thank you!
on 17. October 2025, 00:21 by G00SE
Fun puzzle! I love the cute little alligator. I wonder if it’s upset that it has all them teeth and no toothbrush????
on 16. October 2025, 13:25 by sujoyku
Wonderfully elegant, enjoyable and approachable puzzle! Thank you, cygne!
on 16. October 2025, 11:48 by RockyRoer
LMD -- we need a tag for modular puzzles!
Cygne, thank for this quick coloring puzzle. I loved it!
on 16. October 2025, 09:33 by beano
Usually I wouldn't play a mod line puzzle but the break in and solving of this was lovely!
