Foggy Unique Constraints
(Published on 14. May 2025, 17:40 by Pychael)
Foggy Unique Constraints
Rules:
- German Whispers: Adjacent digits along striped green lines must differ by at least 5
- Renban: Digits on thick purple lines must form an unbroken set of consecutive digits
- Region sum: Thin blue lines are divided into sections by the 3x3 region border lines, wherein each section must have the same sum (All region sum lines do cross at least one border)
- Black Kropki Dots: Digits with a black dot between them must be in a 1:2 ratio
- White Kropki Dots: Digits with a white dot between them must be consecutive
- V: Digits with a V between them must sum to 5
- X: Digits with an X between them must sum to 10
- Squares: Cells with squares must be even
- Each unique constraint type above must not contain any repeated digits anywhere within its specific constraint type (I.E. if a renban line has a 3 on it, no other renban line may contain a 3 in this puzzle)
- The grid is covered in dynamically cleared fog, placing a correct digit may clear fog elsewhere in the puzzle, no guessing is required
- Normal sudoku rules apply
CTC app link: Click
Here
Enjoy!
Solution code: Row 8, left to right
Last changed on on 14. May 2025, 17:41
Solved by SKORP17, trashghost, jalebc, LuanMerlin, Banana, Adaki, GodGamer, sujoyku, apothycus, PrinnyDidi, OnkelPhilip, fuxia, Tulrak, Myreque, lancer102rus, IvoryLinnie, DiMono, Myfyr MJ, maniacaljackal, ... greemi01, Morisenseiisgod, Equixor, tez, morgannamodeaura, dpatti, asoares, tome_coelho, PURB97, AKropki, georgia.b, chinesemaster, cascadeshiker, GorgeousNicko, ArmagedDan, agvard, SamWHE
Comments
on 24. May 2025, 05:33 by Lovejoy
Challenging!
on 22. May 2025, 14:29 by chaosaudit
Really fun solve! Thank you!
on 21. May 2025, 22:00 by Friedhelm
Well done, thanks!
on 16. May 2025, 11:41 by maiaz
Beautiful puzzle with clever constraints that keeps giving all the way to the end.
on 14. May 2025, 20:26 by Myfyr MJ
Nice puzzle with a lovely flow. Needed some concentrated thought during some parts of the solve.
on 14. May 2025, 20:26 by DiMono
Good use of the negative constraint.
on 14. May 2025, 19:04 by sujoyku
Fun puzzle. Thank you, Pychael!
on 14. May 2025, 17:41 by Pychael
I forgor to change the name in the description, whoops