Chateaubriand: An Ambiguously Chaotic X-Sum Sandwich
(Eingestellt am 13. April 2022, 17:12 Uhr von KNT)
Rules:
1. Normal Chaos Construction rules apply. Place one of each digit 1-9 in every row, column, and region, but the regions must be determined by the solver. That is, divide the grid into 9 orthogonally connected groups of 9 cells.
2. Clues outside the grid are either X-Sums clues or sandwich clues, and it is up to the solver to determine which are which.
3. An X-Sum clue indicates the sum of the first N digits from the direction of the clue, where N is the first digit seen in that direction. The first N digits are also all in the same region, and the N+1th digit is in a different region.
4. A sandwich clue indicates the sum of the digits between the 1 and 9 in that row or column. The digits between the 1 and the 9 are all in the same region, and that region does not include the surrounding 1 and 9.
5. The "?" clues are stand-ins for nonzero, positive valued clues.
6. If two clues of an identical value share a row or column, they both cannot point to the same sandwich clue.
CTC app link
Many thanks to TotallyNormalCat for testing. Difficulty should be between 4 and 5 stars. I hope you give this one a try.
If you are stuck, leave a hidden comment and I will do my best to help you out.
Lösungscode: Type the digits (no spaces) of the region containing R5C5 as follows: Row 1's digit in the region (left to right), Row 2's digits in the region (left to right), etc. 9 digits total.
Kommentare
am 29. Januar 2024, 23:10 Uhr von The Book Wyrm
Very good puzzle!
Interesting ruleset, and the ambiguity makes things quite hard at times. Definitely requires a lot of thinking about the implications of the rules to get started, but flows very smoothly after that, with lots of nice deductions.
Also like how the ? clues, while initial useless, end up having forcing some nice logic.
am 6. Mai 2023, 17:34 Uhr von ibag
Wow, another peace of art!
am 4. Dezember 2022, 16:02 Uhr von StephenR
Loved this, thanks. But I did get horribly snagged up at a particular point. Once I'd spotted the logic, which wasn't actually that difficult, the remainder of the path was very smooth.
am 16. August 2022, 23:03 Uhr von Piatato
Delicious!
am 27. Juli 2022, 19:34 Uhr von peacherwu2
What a masterpiece! Enjoyed every minute of it!
am 17. Juli 2022, 17:07 Uhr von Snookerfan
What a great puzzle again! I loved the power of the ? clues. Thank you KNT!
am 10. Juli 2022, 08:18 Uhr von PrimeWeasel
Smooth solve!
am 14. April 2022, 14:45 Uhr von Christounet
Very nice combination of X-sums and Sandwiches in a chaos construction ! A great first sequence which felt more like a 5 stars to me. Many thanks to you for setting this !
am 13. April 2022, 22:37 Uhr von lerroyy
Very nice puzzle!
am 13. April 2022, 21:36 Uhr von TotallyNormalCat
Clean puzzle :)
am 13. April 2022, 21:31 Uhr von marcmees
Nice. thanks.
am 13. April 2022, 19:55 Uhr von Dandelo
I wasn't terrified, because in the last weeks and months I've seen so many CC monsters ...
As always: It's not easy to understand the consequences of a new rule set. But solving the puzzle itself was quite smooth.
am 13. April 2022, 19:23 Uhr von kolot
This puzzle is definitely not a monster. It is hard but involves reasonable logic. It is fun to solve.
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Thank you for the solve, kolot! I too do not think any step in this puzzle is monstrously difficult, but, like many real world monsters, they are more terrifying in appearance than anything else :)
am 13. April 2022, 18:56 Uhr von Dandelo
Very nice.
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Thanks, Dandelo!
