Normal sudoku rules apply.
Adjacent digits along green lines have a difference of 5 or greater.
The sum of the digits between 1 and 9 in each row or column is the "Sandwich sum". Sandwich sums of adjacent rows and adjacent columns have a difference of 5 or greater.
Solution code: row 5
on 22. March 2022, 14:37 by henrypijames
How is it that this puzzle and German Whisper Cages by @kolot comes up on the same day? I smell a German Conspiracy! ;)
on 19. March 2022, 22:58 by apendleton
Neat new constraint idea!
on 19. March 2022, 05:22 by DiMono
What a wonderful idea for a puzzle. Thanks!
on 18. March 2022, 16:42 by avishai
Thank you! I really enjoyed this, especially how the constraint played out in multiple clever ways!
on 16. March 2022, 17:36 by kolot
Very beautiful!
on 16. March 2022, 15:32 by Chelo
Thank you @scruffa, you are a must!.. I enjoyed it very much, the constraint is very interesting and funny!.. Please keep on setting!..