Rules
Normal Sudoku Rules apply. All lines are both German Whispers and Region Sum Lines.
For this puzzle, all lines that cross box boundaries must satisfy both properties. (If a line is contained within a region it only has to comply with German Whisper Rules)
Digits on Region Sum Lines have an equal sum within each 3x3 box they pass through.
Digits on German Whisper lines must have a difference of at least 5 from adjacent digits on the line.
Links
Solution code: Row 5 followed by Column 5. No spaces 18 digits
on 21. April 2022, 19:46 by Sartograph
As a beginner it took me a long time to find the right start. I slowly whittled down some options and numbers and then finally it got going. Felt very rewarding not to give up on this.
on 20. April 2022, 10:47 by filuta
after a cool break-in, it turns into a nice GAS. thanks.
on 20. April 2022, 05:43 by avishai
Thank you! Very fun flow, approachable, and very satisfying solve path!