Normal sudoku rules apply.
Palindromes - Digits on a gray line read the same in either direction along the line.
Killer cages - Digits in a cage do not repeat and must sum to the number in the top-left corner.
Solution code: Row 5
on 3. January 2026, 14:43 by Inge
That was 51 minutes offun! Thank you
on 28. December 2025, 09:33 by JoeyJoeJoe
00:50:26 for me
on 26. December 2025, 17:50 by Fisherman
A thing of beauty. I have been encouraging setters to make mini serieses of their works and I echo it here. Beats me that serieses is not a word.
Anyway, a most satisfying puzzle.