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(Published on 11. September 2021, 14:17 by Qodec)
Special thanks to Niverio and Joseph Nehme for inspiring me to go out of my comfort zone and set an ambiguity puzzle.
Normal sudoku rules apply: each row, column, and region indicated by thick borders in the grid must contain the digits 1 to 9 once each.
Additionally, each line in the grid has one or more of the following properties:
- Renban: The line contains a set of consecutive, non-repeating digits, in any order.
- German whispers: Adjacent digits along the line must have a difference of 5 or more. Digits on these lines may repeat if allowed by other rules.
- Between: Digits on the line (not on the endpoints) must be strictly between the digits in the two endpoints. Digits on these lines (not on the endpoints) may repeat if allowed by other rules.
You can play this puzzle online using:
- CTC app: https://tinyurl.com/6fx48dts
- f-puzzles: https://f-puzzles.com/?id=yk363av9
Good luck!
Solution code: Rows 4 and 6. I.e. the 9 digits in row 4 from left to right, followed by the 9 digits in row 6 from left to right, for example: 123456789123456789
Comments
on 3. September 2022, 23:51 by Agent
Cool puzzle, very clever and enjoyable!
on 4. March 2022, 05:37 by morgannamodeaura
One of the best ambiguity puzzles I've ever seen. Completely fair, brilliant logic that felt rewarding at every step.
on 24. September 2021, 23:12 by zetamath
Excellent puzzle, I quite enjoyed this journey!
on 22. September 2021, 23:32 by Vebby
Fantastic puzzle! Such beautiful logic. Thanks Qodec! :)
on 22. September 2021, 04:39 by twobear
Gorgeous puzzle. Thank you!
on 18. September 2021, 06:25 by Aswen
Fantastic puzzle. It felt very hard at first, but I think once you get used to the ruleset it should settle at 4*.
on 17. September 2021, 15:08 by marcmees
nice but surprised it gets a 5* difficulty after 47 solves. I estimated it lower. thanks.
on 16. September 2021, 18:42 by Pandorah
Took me forever to solve this one, but I was determined to crack it so I just stared at it relentlessly for hours. Very, very enjoyable puzzle!
on 16. September 2021, 11:32 by Phistomefel
Fantastic puzzle! Thank you very much for going out of your comfort zone to construct this beauty.
on 16. September 2021, 03:28 by Piatato
Great puzzle! :-)
on 14. September 2021, 17:08 by sPaulding
I have never been prouder of a sudoku solve. This is absolutely a beautiful, albeit difficult solve.
Genius.
on 13. September 2021, 01:12 by twototenth
Gorgeous puzzle. Even by your usual lofty standards, this is exceptionally brilliant work.
on 12. September 2021, 18:15 by irq
My first solve at >3*! I feel like I sweated for every digit, but what a clean path and a very fun solve. Thanks for the puzzle.
on 12. September 2021, 16:05 by henrypijames
Looked really daunting at first, but turned out to be okay (agree with 4 stars) after applying a certain technique to break in efficiently.
I'd love to see this one on CTC.
on 12. September 2021, 15:45 by tallcat
Found this one quite tricky but very cool and fun nonetheless
on 12. September 2021, 12:46 by PrimeWeasel
Lovely stuff! 4 stars for me!
on 11. September 2021, 21:59 by Playmaker6174
Very cool and intriguing puzzle, some logics are really nice and just make the path that nice to follow :) I enjoyed your works on this one too, it really paid off :D
on 11. September 2021, 21:52 by kolot
Wonderful puzzle! Several hard deductions throughout the solution path.
on 11. September 2021, 19:50 by abed hawila
Wow wow! What a puzzle! Genius construction and a very enjoyable solving path as always!
on 11. September 2021, 19:35 by Myxo
Incredible!
on 11. September 2021, 16:02 by kazu
Enjoyable as always. Thank you!
