About time I had a go at glum_hippo's XY-differences!
You can play this puzzle online using Sudokupad: https://sudokupad.app/txq9i74dn5
Good luck!
Lösungscode: Column 9. I.e. the 9 digits in column 9 from top to bottom, for example: 123456789
am 1. Oktober 2024, 11:33 Uhr von Playmaker6174
Wow what a neat puzzle with such constraint, but the scanning got pretty hard for me later on with the negative constraint, still it was nice to see how it all came together at the end :)
am 27. Mai 2024, 15:34 Uhr von Niverio
Beautiful stuff!
am 1. April 2024, 12:41 Uhr von Jesper
Very nice, thanks!
am 30. März 2024, 13:21 Uhr von mihel111
A real joy to solve.
am 30. März 2024, 10:09 Uhr von Black_Doom
Super nice!
am 30. März 2024, 01:38 Uhr von tallcat
Enjoyed this immensely!
am 29. März 2024, 21:25 Uhr von Bankey
Fun puzzle. Thanks, @ Qodec :).
am 29. März 2024, 19:04 Uhr von Lion Crow
That was fun. I reckon it’s a 3 difficulty - flows nicely, nothing very tricky.
am 29. März 2024, 16:03 Uhr von glum_hippo
Thank you for turning your attention to this constraint! You found a very nice way to showcase what you have discovered in it!
am 29. März 2024, 15:37 Uhr von Qodec
Added solution check to link.