Intersections Sudoku
(Published on 16. July 2021, 14:00 by RockyRoer)
Here's a new rule that has some nice potential I think. If you'd like to try a smaller, easier version with the same ruleset, try Intersections #2 (6x6)
Rules:
- Normal sudoku rules apply. Fill every row, column, and 3x3 box with the digits from 1 to 9 with no repeated digits.
- Numbers in killer cages cannot repeat.
- [Intersections]Numbers in squares represent the sum of all cells that are in the 'intersection' of the two killer cages - that is, all the numbers they have in common.
- Ex. if a 12489 cage is separated with another by a square containing a 7, then the other cage must contain a 1, 2, 4 and cannot contain an 8 or 9.
The Puzzle:
Solution code: Row 4 followed by column 4 (18 digits)
Comments
on 14. December 2022, 13:54 by PixelPlucker
Challenging puzzle with a lot of subtle intricacies, loved it. Thanks Rocky!
on 4. August 2021, 03:54 by RockyRoer
Added link to smaller version of the puzzle
on 25. July 2021, 14:38 by Mody
Das war Spitzenklasse.
on 18. July 2021, 20:29 by marcmees
wonderful puzzle. top rating. Very rewarding solve. thanks.
REPLY: you’re welcome! There’s a sequel coming next week… stay tuned!
on 16. July 2021, 21:32 by henrypijames
I made a mistake late in the solve and had to restart. :(
Reply: ugh. Been there. Glad you persevered and finished. 3.75 stars?
The mistake has thrown me off and precluded a more precise difficulty rating. But with or without the mistake, it's somewhere between 3½ and 4½ stars for me, rounding to 4.
