Kropki Whisper Loop
(Published on 13. September 2025, 01:00 by yttrio)
Rules:
Normal Sudoku rules apply.
Draw a one-cell-wide loop of orthogonally connected cells. The loop may not touch itself, not even diagonally.
The loop acts as a German Whispers line (i.e., adjacent digits on the loop must have a difference of at least 5).
Digits separated by a white dot are consecutive. Digits separated by a black dot have a ratio of 2:1. Not all possible dots are necessarily given.
For each given dot, at least one of the digits touching the dot must be on the loop.
Solution code: Digits on the loop in row 8 (left to right) followed by digits on the loop in column 8 (top to bottom)
Comments
yesterday, 15:01 by VitP
this is level 3 ... because
you are going to need considerable experience with the specific variant in order to reasonably solve it.
in particular, box 9 provides the first major obstacle. if you do not already know all the global patterns, it's hasta la vista, baby.
on 13. September 2025, 22:00 by Exigus
Great loop, amazing that those few dots are enough. Thanks!
on 13. September 2025, 21:35 by Myfyr MJ
Very nice but I found it hard - I’m not a loop person. (Nor Ying Yang!)
on 13. September 2025, 16:59 by wuc
A day with a yttrio loop puzzle is always a great day. What a joy to solve. Awesome setting once more thx.
on 13. September 2025, 16:26 by nunc
I always wonder at these wonderful puzzles that have just a few well-placed clues that define everything. Well done and thanks a lot!
on 13. September 2025, 13:20 by Franjo
I have to admit that it took some time until I realized - „Stupid old man!“ I shouted at myself. So you have successfully fooled me with this ruleset. The incredibly minimal setting is adorable. Thank you very much for creating and sharing another beautiful loop puzzle.
on 13. September 2025, 12:43 by JoeyJoeJoe
00:47:32 for me. Nice and easy to follow
on 13. September 2025, 10:02 by marcmees
pleasantly smooth solve. Thanks
on 13. September 2025, 02:03 by Christounet
Good fun and impressive minimalism as always! Enjoyed it. Thanks :)
