X-Zippers
(Published on 7. September 2026, 22:26 by isajo4002)
• Normal Sudoku rules apply.
• X-Sums: A number outside the grid gives the sum of the first N digits
that row or column, where N is the digit in the cell closest to the given clue. Digits placed outside the grid by other clues become X-Sums numbers.
• Zipper Lines: Digits an equal distance from the center of an odd length lavender line must sum to the value in the central cell of the line. Digits an equal distance from the center of an even length lavender line must sum to the same total. The center of a zipper line is marked with a lavender dot.
play on sudokupad
Solution code: Row 6 followed by column 8
Comments
on 3. October 2026, 06:00 by VitP
hesabossnotamook
on 18. September 2026, 13:57 by jez9999
Hmm, I think the rules should state that double digit numbers are allowed in the clues around the edges. The way it's written right now suggests to me that they can only be single digits.
on 18. September 2026, 09:32 by davidz32z
Really good stuff! Loved how the column 9 line worked out
on 17. September 2026, 18:32 by PancakePie
Very beautiful, very fun!
on 16. September 2026, 17:00 by BigodenoQuadrado
Beautiful construction!
on 9. September 2026, 02:01 by ebulku
Nice one but please use shorter solution code
on 8. September 2026, 23:19 by damo_89
Very smooth
on 8. September 2026, 15:53 by jwsinclair
Really well done, enjoyed this a lot :)
on 8. September 2026, 13:10 by Franjo
Thank you very much for creating and sharing this beautiful puzzle. I really enjoyed the walk on the solving path. (Please use just one row/column for the solution code. Nowadays it’s the standard.)
I can go back to what I used to do for solution codes if you want :)
-Isamook
on 8. September 2026, 07:41 by Saltensity
Amazing puzzle with a smooth solve path, thank you for sharing! :)
on 8. September 2026, 00:21 by Leodekri
I love when lines go outdoor !!
on 7. September 2026, 23:53 by sujoyku
Very nice puzzle! Thank you, isajo4002!
