Normal sudoku rules apply. If a digit appears on a Nabner line, then the digits consecutive with it must not appear on that line. Also, digits may not repeat on a Nabner line. The numbers on the outside of the grid refer to the adjacent row or column, and indicate that the digits residing between the 1 and 9 must sum to that number (do not include the 1 or 9 in the sum). Neighboring digits marked with a black Kropki dot have a 2 to 1 ratio. Not all dots are given. I think this puzzle is 2.5 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.
on 22. February 2024, 16:50 by Flinty
Very nice puzzle :)
on 26. January 2024, 12:38 by Marcus
Great puzzle – beautiful and consistent flow from start to end but never to easy <3
** Thanks Marcus for the kind words and solve. :-)
on 21. January 2024, 21:30 by sdholmes
Very cute break in and very satisfying to solve. Thanks!
** Thanks so much!
on 19. January 2024, 19:51 by Suxamethonium
Loved it! Very satisfying break-in and needed interesting logic throughout.
** Thanks so much for the kind words and solve!