German Whispers: Along green lines, adjacent digits must differ by at least 5.
XV: Digits separated by a V must sum to 5, and digits separated by an X must sum to 10. ALL Xs and Vs have been given (i.e. there is a negative constraint).
Enjoy!
Solution code: Row 3, followed by column 7 (18 digits, no spaces)
on 17. December 2021, 22:01 by Polycarp
Very enjoyable solve. Great setting.
on 4. September 2021, 03:03 by katsudon1cho
It was also fun after the nice break-in!
on 3. September 2021, 14:23 by kolot
Very nice break-in, not too hard but very clever. The rest is the job of the negative constraint.
on 3. September 2021, 14:07 by Playmaker6174
Beautiful interactions in the break-in and pretty tricky scannings afterwards, still I found this one enjoyable to me :)
on 3. September 2021, 06:22 by twototenth
Outstanding puzzle! All of the constraints (positive and negative) worked together beautifully.
on 2. September 2021, 20:49 by glum_hippo
I enjoyed this puzzle immensely, but it was quite tricky