Normal sudoku rules apply.
Purple lines are renban lines: They contain a sequence of consecutive, non-repeating digits in any order.
The number on the outside of the grid is a sandwich clue: The number is the sum of the digits sandwiched between the 1 and the 9 within its corresponding column.
Solution code: Column 7 followed by Column 8 (18 digits in total)
on 16. October 2023, 15:09 by One Eyed Man
Very enjoyable solve, loved the break in. Thanks for sharing.
on 15. October 2023, 18:34 by zalaklab
Wonderful puzzle
on 15. October 2023, 03:26 by Chad
Clever little break-in. Beautiful logic throughout :)
on 15. October 2023, 03:07 by mnasti2
Very good!
on 15. October 2023, 01:49 by PinkNickels
Love the puzzles where at first glance it looks like it's gonna be a hairy one, but the break-in just clicks and it goes quick. Very nice setting. Thanks for sharing.