Paired Constraint
(Published on 27. May 2025, 00:03 by ebiggie)
RULE SET:
Normal Sudoku rules apply. Place the digits 1 through 9 in each row, column, and box.
XV PAIRS: Cells separated by a "X" must sum to 10, and cells separated by a "V" must sum to 5. ALL XV pairs are given. There is a negative constraint on both the X and V pairs in this puzzle.
RENBAN (PURPLE): Digits along a purple Renban line must be a set of consecutive non-repeating digits, and may appear in any order.
Click the Link to Play: Sudokupad
Solution code: Please provide the digits from row 9 (left to right):
Comments
on 27. September 2025, 20:45 by GWilliams00
Completely forgot about the negative constraint until the very end, which forced a coloring approach and made the puzzle probably quite a bit harder than it needed to be!
on 12. August 2025, 20:13 by eap314
Glad I watch CtC! Coloring made this quite easy, although it still took me about an hour
on 4. June 2025, 07:33 by nagaram
Nice puzzle. Don't forget about the negative constraint on XV pairs (like I did initially), or progress will grind to a halt prematurely.
on 4. June 2025, 05:03 by takeponmaki
great puzzle, thank you.
on 3. June 2025, 22:44 by henryng
It's a beauty!
on 28. May 2025, 23:01 by yourfavdutchie
Very nice puzzle! I also used coloring and it was a smooth solve. Enjoyed it a lot!
on 28. May 2025, 21:43 by Onkel_Dagobert
Great fun! Thanks for sharing!
on 27. May 2025, 23:19 by Chris4927
Loved loved loved this. I followed in Exigus’ footsteps and did a full colour reveal. So satisfying
on 27. May 2025, 15:15 by PinkNickels
Super fun! Nurgles has a new competitor :)
on 27. May 2025, 09:48 by Exigus
Loved it. I could have used digits early but prefered to color all the way and then enter all the digits at once, so satisfying. Thanks!
~~~~~
Thank you for another nice comment Exigus, and glad you enjoyed the puzzle. :)
on 27. May 2025, 01:36 by ebiggie
modified difficultly level to 2*
on 27. May 2025, 01:25 by rainingfish
This was a wonderful puzzle but not to hard as someone with experience in XV sudoku and coloring, so I'd give it 2 stars
~~~~~
Thanks rainingfish! I've modified the difficulty level. I appreciate your nice comment and insight :)
