An Odd Serpent DX
(Published on 3. March 2026, 03:36 by JeffWajes)
By Jeff Wajes
I'm celebrating five years of setting Sudoku with an update to my very first puzzle. Enjoy!
Normal Sudoku rules apply.
Digits in a cage sum to the number in the cage's top left corner.
Draw a one-cell wide path of orthogonally connected cells such that:
-The path visits all nine boxes.
-The path consists entirely of odd digits.
-The path does not orthogonally touch itself. (Diagonals are fine.)
-The path does not branch, meaning it does not orthogonally touch any odd digit that's not on the path. (Diagonals are fine.)
Solution code: Row 1
Comments
on 4. March 2026, 16:50 by psams
This is quite an amazing puzzle, and feels a bit like one of Marty Sears' Rat Runs. At first, is was hard to see how the path was constrained by the clues, but the no branching rule comes into play so cleverly. I really enjoyed every stage of solving this one.
on 3. March 2026, 11:02 by StefanSch
Interesting rule set.
