Fuzzy Doublers
(Published on 24. August 2025, 19:03 by Oddlyeven)
Rules: Normal Sudoku rules apply. Put the digits 1 to 9 once each into every row, column and box.
Fuzzy Doublers: Two cells in each row, column and box are fuzzy doublers. One of them has a value of twice its digit plus one and the other one has a value of twice its digit minus one. Every digit appears exactly once as a plus one doubler, and once as a minus one doubler.
Fuzzy Region Sum Lines: Each line has a "region sum" associated with it. Different lines may have different sums. Box borders divide a line into segments. Each segment sums to that line's region sum plus or minus one.
Links:
SudokuPad: https://sudokupad.app/euwp53iphv
Solution code: Column 8, top to bottom (9 digits).
Comments
yesterday, 21:27 by Mennoo_
I think it was at 20 times I thought I had some nice RSL logic but I was only thinking about equal sum and broke the puzzle. Or maybe it happened one time more or one time less, not sure.
Great puzzle! I had to remain alert throughout the entire puzzle which was a challenge, but was overall good fun.
Difficulty wise is though. Never felt to difficult to warrant 5*, but since you had to stay alert and secure, tbe overall solvetime got pretty long for me.
on 25. August 2025, 15:35 by ddx02
Awesome!
on 25. August 2025, 11:49 by oskode
Really cool, a surprisingly smooth solve path!
on 24. August 2025, 21:15 by Fool on Hill
That was a brainbender - dual modifiers and Knapp-Daneben ... kept me on my toes with fresh things to think about. Enjoyed it a lot.
on 24. August 2025, 19:43 by Agent
Cool puzzle, great modifiers and Knapp-Daneben logic!
