Chaos Construction: X-Sums with Doublers
(Published on 30. August 2022, 22:01 by KNT)
A number outside the grid indicates the sum of the first N numbers from the direction of the clue, where N is the number closest to the clue. The first N numbers are also all in the same region, and the N+1th number is in a different region. A question mark can be any positive integer.
Exactly one number in every row, column, and region counts for double its value. Every number from 1 to 9 is doubled exactly once.
A 1-6 example is provided:
Solution code: Row 4, Column 7
Comments
on 24. May 2023, 17:26 by Agent
Beautiful puzzle!
on 8. April 2023, 20:11 by Piatato
Really nice puzzle, with a lot of varied, fascinating deductions!
on 26. December 2022, 00:13 by ONeill
Very nice! Surprised I only broke it a couple of times :D
on 16. October 2022, 10:02 by AnnaTh
Exceptionally great again, easy to make mistakes.
on 4. October 2022, 16:47 by Mody
Really great
on 24. September 2022, 12:19 by ibag
Fantastic puzzle!
on 18. September 2022, 09:45 by cdwg2000
【双倍数X和分区数独-哔哩哔哩】 https://b23.tv/IyQxRfF
on 17. September 2022, 18:14 by cdwg2000
Very nice! AWesome setter!Thanks KNT.
on 4. September 2022, 23:35 by KevinTheMH
spent 3ds, very well designed
on 4. September 2022, 20:08 by DaniK
Wow! what an impressive puzzle. I had to reset about 10 times because of mistakes I made, but I was hooked and kept trying. And it was abolsutely worth it. Thanks for setting such a nice puzzle :)
on 4. September 2022, 12:40 by profanat
This is insanely hard and clever puzzle, spent 3 hours on it...
on 2. September 2022, 19:18 by peacherwu2
Se vuelve cada vez más interesante, porque lo rompí muchas veces. Haha!
on 1. September 2022, 07:15 by flyjim
Very difficult, but I like it
on 1. September 2022, 07:15 by flyjim
Very difficult, but I like it
on 31. August 2022, 22:07 by marcmees
another great CC. Challenging but fair. thanks
on 31. August 2022, 14:30 by Vebby
Great fun! Thanks KNT!
