Whisper Killer No7
(Published on 24. April 2023, 13:40 by TinkerTroy)
Edit: Apparently, the original was over-clued, making it possible to solve without the No7. I should have tested it better. This slightly edited version should resolve that issue.
Introducing a (relatively) new global constraint. The No7 - Orthogonally connected cells may not sum to 7. It's been seen before in a couple puzzles, but I and others have been exploring it a bit and have found some very interesting interactions.
Comments and criticism of the constraint are most welcome. As for this puzzle itself, it's more of a demo than anything.
Rules:
- Normal (7x7) Sudoku rules apply
- No7 - Orthogonally connected cells may not sum to 7
- Whispers - adjacent cells must differ by at least 4
- Killer Cages - Digits must sum to the total provided
- Circle - This must be an odd digit
Solution code: Row 2 followed by Row 6
Comments
on 10. August 2024, 18:26 by garycblack
I knew I was going to forget the summing to 7 rule, and then I did! Fun puzzle.
on 22. November 2023, 15:31 by ark29
A fun simple puzzle. Some interesting logic.
on 19. July 2023, 00:47 by F53710
Really nice. I'm a newbie who still wants an interesting challenge so puzzles like these are perfect for me.
on 16. July 2023, 19:45 by Superdamicobros
Solved with updated rule set. Very nice.
on 15. June 2023, 22:35 by obi
Totally forgot about the No7 rule until the very end...I'm a fool! Thanks for the great puzzle
on 2. May 2023, 08:48 by gd1981
Very nice puzzle. Haven’t seen the original but like the new twist with the orthogonal 7 constraint
on 26. April 2023, 04:13 by RussKozerski
Update: Hah. Got it. Seemed rather easy today. Some days you get the bear, and some days the bear gets you. Thanks for an enjoyable (and challenging) puzzle.
I've stared at the updated version for 2 days, and still can't figure it out. Then I went to the original and solved it in 15 minutes. Not claiming a solve though, so I'll come back at a later date and tackle the updated version again. Thanks for the puzzle, TinkerTroy.
----
Not sure where you got stuck at, but as near as I can tell at this point, the No7 rule will smack you around pretty good.
-TT
on 25. April 2023, 15:26 by Orpheus
This was a fun little snack. I quite enjoyed it. Thank you for sharing!
on 25. April 2023, 10:37 by T1geR
Cool puzzle!
on 25. April 2023, 00:44 by Superdamicobros
Fun solve for my first try on here. Nice job
on 24. April 2023, 17:54 by TinkerTroy
Fixed solve path.
on 24. April 2023, 17:10 by julien505
Fun puzzle but I've never used the "adjacent cells do not sum to 7", so I wouldn't say it's the best puzzle demo for that rule
----
Thank you for pointing that out. Completely messed that up by leaving in too many clues. Should be much better now!
on 24. April 2023, 14:37 by slowbiex
nice and easy! Thx.
