Parity Party XXII, "Party Hearty"
(Published on 4. January 2022, 04:19 by glum_hippo)
Apply standard irregular sudoku rules. Each row, column, and outlined region must contain the digits 1-9 exactly once each. However, the shapes of regions need to be determined.
Clues along the edges are 'Parity Party' clues. They give the sum of the digits seen from that standpoint up to and including the first odd OR first even digit. It is possible for a one-digit clue to be fulfilled by a single digit.
For every given Parity Party clue, the final digit of the sequence is followed by a region edge, and no such sequence is interrupted by a region edge. Where no clue is given, the digits seen in that region must not constitute a valid Parity Party sequence (e.g., 2634, 175, 46, 381, etc). A '?' stands for any number.
SudokuPad link for the 6x6 example.
| Example | Solution |
Solution code: Column 3, from top to bottom; then, for each row, the number of digits in the longest uninterrupted string of digits (between two region edges).
Comments
on 18. December 2023, 12:04 by glum_hippo
updated links
on 6. December 2022, 22:37 by peacherwu2
What a beautiful setup. I am happy it's not the hardest.
on 5. March 2022, 15:54 by Vebby
Superb! Took me a little while to get going but after that it flowed beautifully with interesting deductions all over the place. Thanks Philipp! :)
on 19. February 2022, 15:49 by Mody
Eines Deiner besten Rätsel, Philipp.
Vielen Dank für diese wunderschöne Tüftelei.
on 16. February 2022, 21:02 by ibag
Großartig!
on 20. January 2022, 11:19 by ffricke
Ein wunderschönes Rätsel, bei dem ich kurz vor dem Ende noch fast gedacht hatte, dass es falsch war, aber dann habe ich doch noch eine andere Möglichkeit für das Platzieren dreier Gebiete gefunden. Vielen Dank für den Rätselspaß
on 10. January 2022, 15:54 by PrimeWeasel
Great stuff Glum!
on 10. January 2022, 08:58 by Statistica
Ganz klasse. Und eine tolle '2' als Vorgabe :-)
on 10. January 2022, 08:52 by AnnaTh
Wonderful puzzle! Once you make out how to approach it, it ist a mere pleasure to solve.
on 7. January 2022, 02:48 by filuta
No particular step is hard to find, but it is also very easy to slip (at least in my case it was). Thanks a lot for this gem of a puzzle (and happy new year 2022 to you as well).
on 6. January 2022, 16:10 by glum_hippo
Thanks for all your comments, Magnus, Jesper, SE and marc. I think the example puzzle is at least as absorbing as the main puzzle, so do give it a try also!
on 5. January 2022, 23:17 by SudokuExplorer
Very enjoyable and approachable logic from start to finish, thanks! :-)
on 5. January 2022, 00:29 by MagnusJosefsson
Absolutely wonderful! Rock solid interesting logic throughout. Relatively easy for a 5* puzzle, I found it borderline between four and five stars difficulty.
on 4. January 2022, 21:09 by marcmees
very hard but rewarding solve. thanks.
on 4. January 2022, 20:47 by Jesper
Brilliant! A pleasure to solve.
