Udukos' breakfast
(Published on 14. October 2020, 20:49 by Qodec)
Embedded sandwiches for breakfast.
udukos expressed his enthusiasm about puzzles with this ruleset (by stephane.bura) to me, but there are only very few of them. And so here's another, as a gift, and as a tribute to a constructor whose puzzles have given me great joy - I encourage you to check them out.
- Normal sudoku rules apply.
- Arrows pointing at each other in the same column or row indicate an embedded sandwich. The cells containing the arrows are the boundaries of the sandwich and they must contain the sum of the digits enclosed between the boundaries. Examples of valid options for an embedded sandwich of 5 cells: 1 3 4 5 2 (3+4+5 = 12), or 2 3 4 5 1 (order does not matter), or 1 5 7 9 2 (5+7+9 = 21).
- Inequality: r4c1 is smaller than r5c1. ('r4c1' means the cell in row 4, column 1.)
Beware that udukos has a strong stomach, so good luck with this one.
You can play this puzzle online using Penpa: https://git.io/JTt1P.
Earlier puzzles with this ruleset:
Enjoy!
Solution code: The 9 digits in row 3 from left to right, followed by the 9 digits in row 8 from left to right, no spaces, for example: 123456789123456789
Comments
on 1. January 2023, 20:45 by LadyShapeShifter
Like an eggs benedict. Delicious.
on 21. August 2022, 21:02 by Playmaker6174
That opening was such an eye opener moment for me when it clicked, really satisfying once I wrapped my thoughts around the rule set ;)
on 4. March 2021, 21:43 by DiMono
Really nice puzzle once you wrap your head around how the rules work. Lots of fun.
on 4. March 2021, 20:15 by Qodec
Upgraded difficulty to 5 stars.
on 16. October 2020, 19:30 by marcmees
nice breakfast
on 14. October 2020, 21:07 by udukos
This is such a beautiful puzzle. Thank you for putting my name on it. :)
