Normal Sudoku rules apply.
Each pink line contains a set of consecutive, non-repeating digits, which can appear in any order.
Digits in a circle must appear at least once in the four cells surrounding the circle. (Empty circles are only there for theme!)
Solution code: Column 9
on 20. May 2023, 12:50 by pms_headache
Wow. When I finally cracked it open, it finished so nicely, but it was hard to crack!
on 16. May 2023, 04:08 by Calvinball
Tough puzzle, but I never felt stuck for too long. For me I seemed to pick up on a few seemingly small things until they turned into a big thing, I love solves like that.
Also the symmetry is very pretty!