Whispers Below
(Published on 29. January 2026, 03:24 by antiknight)
Rules:
- Sudoku: Normal Sudoku rules apply.
- German Whispers: Adjacent digits on each grey line differ by at least 5.
- Fortress: All line cells act as fortress (minimum) cells: Any cell on a line must contain a value smaller than every orthogonally adjacent cell that does not lie on the line.
Click the image to play in SudokuPad!
Enjoy!
Solution code: Row 1
Comments
on 1. February 2026, 10:56 by botteur
Looked daunting at first, but unfolded very nicely. Thanks for setting!
on 31. January 2026, 01:58 by Jasperrr
Very nice puzzle. Definitely not 2* though.
on 30. January 2026, 20:22 by Rockon101000
Surprising how so few rules can create such an engaging solve. Took me 42 minutes over two days, which was not aided by the fact that I forgot on the second day the lines were also GWs.
on 30. January 2026, 10:20 by damo_89
I may suck at fortress but I found this substantially harder than 2*
on 30. January 2026, 06:32 by Playmaker6174
Sweet puzzle, I had lots of fun at the end! If anything, it's a bit hard to scan the pencil marks along the lines.
on 29. January 2026, 10:15 by wuc
Great. I tried out how far you can solve it with maximum cells, by mistake :-) I realized it after some thinking and bravely hitting the solution checker. Great puzzle after the restart. Great setting thx.
on 29. January 2026, 10:10 by VitP
with only a weak constraint on only a few cells, the probability that this is level 2 is vanishingly small
