RULE SET:
Normal Sudoku rules apply. Place the digits 1 through 9 in each row, column, and box.
GERMAN WHISPER (GREEN): Adjacent digits along a green German Whispers line must differ by at least 5. Digits may repeat if other rules allow.
DUTCH WHISPER (ORANGE): Adjacent digits along a orange Dutch Whispers line must differ by at least 4. Digits may repeat if other rules allow.
RENBAN (PURPLE): Digits along a purple Renban line must be a set of consecutive non-repeating digits, and may appear in any order.
ENTROPIC (GREY): Any set of three sequential cells along a grey line must contain a low digit (1,2,3), middle digit (4,5,6) and high digit (7,8,9).
KROPKI: Cells separated by a black dot are a 1:2 ratio. Cells separated by a white dot are consecutive. Not all dots are given.
For our color blind friends:
German Whisper: R1C3-R1C1-R2C2, R2C4-R2C8-R4C6 (triangle), R8C4-R9C7
Dutch Whisper: R2C4-R1C4-R1C8, R5C4-R7C2-R7C6 (triangle), R5C8-R8C7 (like a "J")
Renban: R1C3-R2C2-R3C2-R5C4-R2C4-R1C3, R1C8-R1C9-R5C8-R1C8, R7C3-R8C4-R8C1
Entropic: Remaining lines are entropic
Click the Link to Play: Sudokupad
Solution code: Please provide the digits from column 2 (top to bottom):
on 23. April 2025, 14:52 by Inge
Very nice puzzle, that was fun, thank you very much
on 23. April 2025, 06:49 by Exigus
Looks great and the interactions between the different lines made it a fun solve.
on 22. April 2025, 16:14 by skylarm
What a fun solve :)
on 22. April 2025, 15:50 by PinkNickels
Very fun solve! Thank you.
on 22. April 2025, 05:38 by skylarm
What a fun solve :)
on 22. April 2025, 01:40 by sfield
I solved the puzzle and had the correct code and checked all my rules. But the check box didn't register it as the correct solution.
~~~~~~~~~~~~~~~~~~~
Hi sfield, I checked the solution code and it's correct in the settings. I also do see your name in the list of solvers, so it must have worked :)
~~~~~~~~
No, the solution code worked fine. I meant in the puzzle on the sudokupad. When I solved it and hit the check box, it said I must have missed some rules. Maybe I did. Maybe I got something wrong, but the mistake didn't impact the code. But I couldn't find a mistake. So maybe check your solution in the sudokupad and make sure it is correct. If it is, the I probably messed something up.
~~~~~~~~~~~
Ah! thank you for clarifying that. I've checked the solution in sudokupad and it does work as expected. There is a unique solution to this puzzle so I'm not sure where the disconnect is. Perhaps enable the conflict checker to see if something comes up red?
Please note: The German version of this page has changed. It is possible that this page does not contain the latest information.