Sashigane Whispers
(Published on 15. March 2024, 19:40 by yttrio)
Rules:
Normal Sudoku rules apply.
Sashigane: Divide the grid into regions of orthogonally connected cells so that every cell is in exactly one region. Each region must be an L shape with a width of one cell.
-- Digits cannot repeat within a region.
-- Arrows must lie at one end of an L and point toward the bend. The digit on an arrow must contain the number of cells along that leg of that region, including the bend and arrow cells.
-- Circles must lie at the bend of an L. Digits in a circle must contain the total number of cells in the region, including the circled cell.
Any Sashigane region that contains either a circle or arrow clue must act as a German Whispers line (i.e., adjacent digits within such a region must have a difference of at least 5). A Sashigane region without a circle or arrow clue has no such restriction.
6x6 Example:
The image below shows a sample 6x6 puzzle and solution with the same rule set.
Note: For 6x6 Sudoku, adjacent digits on a German Whispers line must have a difference of at least 3 (instead of the usual 5)
Play the example 6x6 in SudokuPad.
Solution code: Row 7 with hyphens where there are Sashigane region borders (e.g., 123-4567-89)
Comments
on 27. July 2024, 09:36 by Bankey
Tough but fun. Thanks, @ yttrio :).
on 21. March 2024, 19:41 by alanb
Beautiful. The example puzzle was super helpful. Very satisfying to chip away the possibilities and converge on the solution.
on 19. March 2024, 15:08 by LehanLehan
What a treat. It was my first sashigane puzzle,but its flow was so smooth that it felt like 2-3 stars difficulty. Thank you very much, it was a great pleasure to solve.
on 18. March 2024, 20:09 by samuel1997
What a satisfying solve through the whole puzzle! The result of the combination of these 2 rules is marvellous!
on 17. March 2024, 00:58 by peterkp
I found this very hard and nearly gave up. But I suddenly had a light bulb moment that helped me keep going. Fantastic puzzle, and worth hanging in there.
on 16. March 2024, 19:16 by BenTen
I've not done this puzzle type before but really enjoyed it.
The logic was brilliant and flowing from beginning to end. Thanks for setting this fantastic puzzle.
on 16. March 2024, 16:24 by Jolly Rogers
Super satisfying and super fun to solve. Great combination of rules! :]
on 16. March 2024, 03:13 by Nordy
So many fresh geometric ideas! Super fun, and also super smooth if you do a little sudoku along the way
on 16. March 2024, 00:38 by bansalsaab
Amazing.
