Region Sum Whispers / Region Summengeflüster
(Published on 22. January 2024, 19:08 by PDN777)
Normal sudoku rules apply. The lines in the puzzle are Region Sum / German Whispers lines. They obey both constraints. To wit: the digits along a region sum line must have the same sum in each 3x3 box entered by the line. And -- adjacent digits on a line must have a difference of five or greater. Neighboring digits marked with a white Kropki dot are consecutive. Neighboring digits marked with a black Kropki dot have a 2 to 1 ratio. Not all dots are given. I think this puzzle is 1.5 stars out of 5 for difficulty for many solvers. As always, comments welcome. Thanks!
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Solution code: First row of puzzle, and fourth column of puzzle (read top to bottom). Enter as a string of 18 digits, no spaces.
Comments
on 14. June 2024, 02:57 by cozoq
Very nice puzzle!
on 22. February 2024, 17:10 by Flinty
Another excellent puzzle. :)
on 31. January 2024, 02:54 by DanSkorne
Really enjoyed getting off to a good start, going to make dinner, then when I came back completely forgot the lines were also German whispers & sat there for almost an hour completely lost.
on 23. January 2024, 16:31 by PDN777
Thanks for the solves, commenters, and all! Yes, it definitely helps to deploy all of the rules!
on 23. January 2024, 14:20 by Schnitzelmampfer
Thank you for the puzzle! I liked it very much.
on 22. January 2024, 22:12 by chain.reader
very nice.
late stage solved easier when I remember the region sum rules.
