After purpl (Memeristor) recovered and published a 2 year old puzzle of his in which he very kindly lists me as a collaborator, the variant rule used in that puzzle captivated me once more.
You can play this puzzle online using Sudokupad: https://sudokupad.app/xgjjovdfmy
Solution code: Columns 1 and 9. I.e. the 9 digits in column 1 from top to bottom, followed by the 9 digits in column 9 from top to bottom, for example: 123456789123456789
on 1. October 2024, 10:34 by Playmaker6174
Frankly speaking, what a bizarre puzzle with lots of surprising geometric interactions! Funny how it resolved at the end too x)
on 30. September 2024, 17:59 by Laake
An incredible puzzle that had some quite frankly unbelievable geometry throughout!
on 29. August 2024, 23:05 by Niverio
Absolutely incredible geometry! Brilliant work.
on 12. July 2024, 16:09 by mihel111
Very nice geometry. There is no real break-in but a lovely step-by-step path with a very good flow. A joy to solve.
on 11. July 2024, 01:19 by softie
A beautiful chain of breadcrumbs from start to finish! It felt much harder while solving it than it seems looking back at each step along the way, which I think is a sign of a great construction.
on 10. July 2024, 20:22 by antiknight
Great idea, especially with the two one-cell arrows!