Normal sudoku rules apply
Place the digits 1-9 in every row, column and 9 cell region.
Pink Renban lines: lines do not branch and contain non repeating consecutive digits in any order.
Black Kropki dots: between digits with a 1:2 ratio.
White Kropki dots: between consecutive digits.
Sandwich sums: numbers outside the grid give the sum of the digits between 1 and 9 in their respective row or column.
Additionally the grid is covered in fog, which will clear as correct digits are entered.
Solution code: Row 1
on 23. June 2024, 11:14 by maiaz
I think the non branching constraint is only needed for the initially visible renban lines. For some reason the CTC link doesn't show the non branching constraint (does it need a refresh update too?)
on 29. January 2024, 18:45 by cascadeshiker
Very nice. I really enjoyed the solve. Many thanks. About 1.5 stars of difficulty for me.
on 23. December 2023, 06:30 by filz
Very nice irregular shapes! That was fun, thank you!
on 22. December 2023, 18:49 by sacklunch
Beautiful design, loved this! The shape of the regions led to some really satisfying deductions.
on 22. December 2023, 13:04 by One Eyed Man
Nice puzzle, very enjoyable solve. Thanks!
on 22. December 2023, 09:49 by Benji
Great puzzle, thank you. :)
on 22. December 2023, 09:29 by Cogsplay
Clarified that Renban lines do not branch in this puzzle
on 22. December 2023, 08:30 by Felis_Timon
Did you miss the possibility for Renbans to branch?
Otherwise I don't think this should be 1-star because I can't see a way to solve this.
@Felis_Timon you are correct. I will update the rules to say non-branching. Thanks for pointing this out.