Positive Ring
(Published on 19. January 2021, 02:00 by SudokuExplorer)
Each row, column and region contains the digits 1 to 9.
Standard killer rules apply.
Digits in caged areas add up to the number in the upper left corner. Also digits can not repeat in cages.
You can try this on Penpa+ or F-Puzzles. Enjoy!
Solution code: Enter the first column followed by the last row.
Comments
on 20. June 2024, 10:58 by mezkur7
Sudokupad: https://sudokupad.app/7vj2ekg8ag
on 2. August 2021, 02:47 by SudokuExplorer
Fixed labels/tags
on 19. January 2021, 18:44 by SudokuExplorer
Thank you all for the lovely and positive reviews.
I'm glad you all discovered and enjoyed the logic. :-)
on 19. January 2021, 18:27 by Qodec
Great puzzle! Enjoyed it very much!
on 19. January 2021, 13:33 by TimE
Stunning!!
on 19. January 2021, 11:39 by tenaliraman
What a lovely puzzle idea! Very elegant solve path :-)
on 19. January 2021, 11:21 by cdwg2000
The design is very beautiful, and the logical process is also very elegant, thank you!
on 19. January 2021, 08:19 by Willy Wonka
Incredible build!! Such a beautiful puzzle that was very exciting to solve
on 19. January 2021, 03:46 by EliasKar
Although I'm not a fan of irregular sudoku, this was an amazing puzzle! Well done!
on 19. January 2021, 03:22 by Storm
The Law of Leftovers was really useful. Lovely design!
