Classic Sudoku: Every row, column and 3x3 box must contain every number from 1 to 9. Adjacent digits along a green line have a difference of at least 5.
Made this puzzle to introduce German whispers to my partner, so I kept it light while having fun with the mechanic!
Solve online: SudokuPad
Solution code: Row 9
on 5. October 2026, 23:36 by LARSPARIS
Bon idea
on 5. October 2026, 18:01 by berdy
Thanks for the feedback! This is my first submission, so I wasn't very familiar with the solution code culture. The copy cells tip is a good one, I'll make sure to optimize my solution codes for brevity, contiguousness, or both. And 81 cells is pretty quick with cmd+A and copy, maybe faster than one row, why not indeed haha
Updated the code to just row 9
on 5. October 2026, 17:42 by Wenir
why not 81 digits? Just to be sure
on 5. October 2026, 14:45 by anothermember
Never understood all the complaints that long solution codes get. It's excessive but it's hardly an arduous task to type in a few more digits.
on 5. October 2026, 14:28 by Peteronium
Fun easy puzzle, but regardless whether it is doable or very cumbersome to copy or transcribe 18 digits: what purpose does it serve? Anything more than 4 digits is impossible to guess right and anything less than 7 is easy to remember => 5-6 digits would optimal.
on 5. October 2026, 12:48 by Rollo
Ich find's toll :-), auch wenn ich 18 Minuten gebraucht habe. Den Lösungscode konnte ich auch schnell aus sudokupad kopieren.
BTW: The solution code can definitely include spaces.
on 5. October 2026, 11:42 by firespire
I have no problem with 18 digits solve code if it is kept to rows, turning on and using the Sudokupad copy button copies two rows in the correct order.
I could do with the green lines being slightly less dark, I did have outline on digits on but small pencil marks do fade somewhat.
on 5. October 2026, 10:59 by NeeBats
Nice ! A good introduction to the German whispers clearly
on 5. October 2026, 10:53 by varbrad
Nice simple snack - 4:58 for me
on 5. October 2026, 10:25 by superkinkel
In general a nice snack but an 18 digit solution code is ridiculous, in particular since it even includes a given digit.
on 5. October 2026, 07:58 by berdy
Added a sentence to the description.
Please note: The German version of this page has changed. It is possible that this page does not contain the latest information.