1989 (Hanna's Version)
(Published on 10. May 2026, 10:42 by hanna_werner)
All clues are standard, but sum lines count to the same total for every visit to a region!
Normal Sudoku rules apply.
Regional sums: Box borders divide blue lines into segments. Each segment sums to the same total. Different lines may have different totals. Every visit to a region counts towards the same total for that region!
Killer cages: Digits in a cage do not repeat and sum to the number given.
Quadruples: Digits in circles must appear in a cell touching the circle.
Odd: Cells with a grey circle contain an odd value.
Clarification: There is one regional sum line in R3C6, R2C6, R1C7, R1C8, and R1C9. There is a different regional sum line in R1C5, R1C6, R2C7, R3C7, R4C8, and R4C9!
Solution code: Row 9 from left to right
Comments
on 17. May 2026, 17:37 by anothermember
Very fun. Some tricky to spot patterns so I think you're right with 2* personally.
on 14. May 2026, 05:48 by Aronana
Aronana's version
on 11. May 2026, 18:40 by VitP
this may seem fairly hard, but it's level 1. careful attention to basic sudoku shows this
on 11. May 2026, 13:33 by pmays123
That was fun! Thanks
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Thank you!
on 10. May 2026, 18:39 by henryng
Really nice puzzle—unfortunately I tend to just read the rules in the app, rather than on LM, so when I read "All clues are standard" I didn't notice the unusual sums rule and really struggled for a while!
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Thanks for the hint, I fixed the rules! And thank you for the kind words :)
on 10. May 2026, 15:11 by sujoyku
Lovely puzzle! Thank you, hanna_werner!
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Thank you dear!
on 10. May 2026, 11:14 by RedBarchetta
That was the first "other" region sum line rule I've played, and I quite enjoyed that logic. Great setting, thanks!
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Thank you so much! This is the first Sudoku I've ever set, so I really appreciate the feedback!
