Rules:
Normal sudoku rules apply.
Renban: Digits along a purple renban line form a sequence of consecutive digits in any order. IN ADDITION, each renban line must contain a unique set of digits.
Quadruple: Digits in a quadruple clue must appear in the four surrounding cells at least once.
Killer: Digits in cages must not repeat, and sum to the small number in the top left corner of the cage.
Solution code: Row 2 digits from left to right.
on 12. December 2023, 19:52 by lmdemasi
Puzzle is more like 4* if you don't read the rules.
on 15. July 2023, 00:28 by LeaVulpina
I feel like I shouldn't have found this as difficult as I did? *shrug* I must have missed something, but got there in the end.
on 14. July 2023, 21:50 by VitP
Of course, all these puzzles are handcrafted, but here you can clearly see the trail of breadcrumbs that someone (the setter) has left to guide you through the forest.