District
(Published on 12. April 2025, 08:36 by Gerhard1963)
This puzzle was inspired by the London Underground map.
Rules:
- Standard sudoku rules apply: The digits 1 through 9 appear in every row, column, and box.
- German Whispers: Usually shown as green lines, adjacent digits along a German Whispers line must differ by at least five.
- Dutch Whispers: Usually shown as orange lines, adjacent digits along a Dutch Whispers line must differ by at least four.
- Modular Line: Any set of three adjacent digits along a modular line (usually teal in colour) has three different remainders when divided by 3.
- Region Sum Line: The sum of the digits on a blue line within a particular region must be the same for all of the regions the line passes through.
- Renban Line: Usually shown as purple lines, digits along a Renban line must form a set of non repeating consecutive digits in any order.
- Parity Line: Adjacent digits along a peach line must alternate in parity (odd/even).
The circles are only for aesthetic purposes.
SudokuPad
My Puzzle Catalogue
Solution code: The digits on the positive diagonal (from bottom left to top right).
Comments
on 13. August 2025, 13:04 by OBu42
I really liked the idea of a second sudokupad variant where the lines follow the standard path - I made several mistakes as well because I missed something... The puzzle itself is great!
on 10. May 2025, 21:17 by ammiraglio
Great logic. Design a bit messy where lines touch only the corner. Had to go back twice missing the tiny corner bit. Still good puzzle
on 20. April 2025, 11:34 by AlexRaetselt
What a beauty! I actually liked how the slightly distracting visuals forced me to pay attention to the details. Great job !!
on 17. April 2025, 02:57 by thebriskt
I'm surprised at how few solves there were. Not easy, not still very logical.
on 15. April 2025, 19:00 by sujoyku
I completely understand why this layout has been chosen, but I admittedly also had problems with the scannig. Maybe have a plain additional sudokupad link so that people can choose if they want to solve with visuals or without? The puzzle itself was fantastic. Thank you, Gerhard1963!
on 15. April 2025, 18:31 by Nagesh
Those lines are a mess. Would rate this puzzle a -1 if it were possible.
on 15. April 2025, 10:05 by Inge
Very nice puzzle
on 13. April 2025, 17:42 by dingledork
Nice aesthetic, but what a pain in the you-know-what to solve. I found it extremely hard to figure out which cells were impacted by which lines, and I kept missing cells where a line only enters in a corner. This is probably a me problem, but it was a frustrating solve and I’ll be skipping puzzles like this in future.
on 12. April 2025, 19:31 by Adrian71
Nice puzzle, was fun to solve, thanks!
