Foggy German Loop
(Published on 11. December 2025, 11:27 by FJL)
Difficulty: 1.5/5
Normal sudoku rules apply.
Dynamic fog: most of the grid is covered in fog. Placing a correct digit in a cell will lift the fog from that cell and possibly from additional cells.
Kropki: some cells are connected by white dots. Those cells differ in value by 1.
German whispers loop: some cells in the grid are shaded (blue). All non-shaded cells are connected by a german whispers loop that moves orthogonally. It can touch itself, but not overlap, branch or cross. The loop can only visit a box once, and not all boxes are necessarily visited by the loop. Digits along the loop differ from their loop neighbors by at least 5.
Solution code: row 3
Comments
on 15. December 2025, 17:52 by fishwithapipe
Took me ages to get going.
To those struggling, the path and it's nature are more restricted than you may realise.
on 12. December 2025, 19:20 by faltenin
Great puzzle!
Took a few wrong starts and head scratching, then it clicked.
on 12. December 2025, 16:39 by nunc
I loved this puzzle!
1.5 stars seems appropriate.
on 12. December 2025, 15:00 by 5vishalb
How’s this only 1 star!! Am I missing something obvious? Any hints plz?
on 12. December 2025, 14:45 by 5vishalb
How’s this only 1 star!! Am I missing something obvious? Any hints plz?
on 12. December 2025, 14:43 by 5vishalb
How’s this only 1 star!! Am I missing something obvious? Any hints plz?
on 12. December 2025, 13:48 by JVA
Thank you very much @anothermember !
on 12. December 2025, 12:49 by anothermember
Not too difficult but not trivial either.
Link with solution (as has been requested): https://sudokupad.app/vwqqs302k2
on 12. December 2025, 11:18 by JVA
No solution checking :( if someone uploads a version with I'll give it another try, but as it is the puzzle is too hard without it
on 12. December 2025, 09:09 by WvdWest
Nice puzzle.
