Positive Negativity
(Published on 12. February 2024, 06:48 by The Bard)
Normal sudoku rules apply.
Ying Yang: shade some cells so that all shaded and unshaded cells form 2 form orthogonally connected areas such that no 2x2 area is entirely shaded or unshaded, and all the digits values in the shaded area are negative values.
Killer Cages: VALUES in cages add up to the total in the corner.
Arrows: VALUES along an arrows path add up to the VALUE in the circle.
Kropki Dots: consecutive VALUES between 2 cells are indicated by a white dot, not all dots are given.
Note: On F-Puzzles you will need to turn off the conflict checker in settings because it does not recognize negative values.
Solution code: Column 7
Comments
on 22. July 2024, 10:55 by wuc
Interesting rules, approachable rewarding puzzle - my favorite setting. Nice flow. Clever setting. Thx.
on 16. July 2024, 19:02 by Decapod
I just came here from the sequel. Another very enjoyable and approachable puzzle, thank you!
~~
Glad you liked the series. I most likely will make another at some point... Stay Tuned... lol
The Bard
on 28. February 2024, 00:47 by emilyble21
Such a fun puzzle! Quite challenging without being complex or frustrating. Finished in 78 minutes, admittedly after a few restarts. Did you intend for some of the coloring to remain unresolved until near the end? I am fairly new to yin yang and this is my first solve of a puzzle that uses negatives, so I could have easily overlooked something.
~I am glad you enjoyed it.
A lot of these puzzles require you to solve the yin yang to finish the sudoku, but this one requires you to finish the sudoku to finish the yin yang. The idea is that both are equally part of the puzzle and solve.
The Bard
on 21. February 2024, 00:18 by The Bard
Big thank you to Sudoku Sleuth for picking up this puzzle to highlight on their channel.
I am impressed with the very difficult solve path Sudoku Sleuth took, but it certainly worked. There was a cage that wasn't solved till near the end that had it been seen earlier would have made the solve much easier. (Don't want to say which one as to not spoil anything.)
Also, thank you to all the others who have solved!
Here is the link to the video: https://www.youtube.com/watch?v=s3XCBJ7x4jA
The Bard
on 17. February 2024, 21:23 by Snaques
Took me four tries, but it was just too good of a puzzle to give up one.
My main issue was the constant cofusion between different parities and polarities. It really works well, but calls for a bit more attention to detail than I'm comfortable with.
~I don't know if I should feel bad or really good that it took several tries but I am glad it kept you coming back. :)
The Bard
on 16. February 2024, 18:42 by abihummel
Gorgeous! Loved this combination of constraints!
~I am thrilled that you liked it so much.
The Bard
on 16. February 2024, 11:55 by Something Wellesian
Took me a couple of tries but I *really* enjoyed this puzzle.
~Glad to hear it. It takes a minute to get the positive and negative values straight, not too many sudokus do something like this.
The Bard
on 14. February 2024, 19:43 by madhupt
Very enjoyable and approachable too!
~I am glad you enjoyed it.
The Bard
on 13. February 2024, 21:56 by fitzie
it would have been nice needing the shading for the solution code, like all "shaded cells in column 7". however, I did use dingledork's tip to finish the shading myself :)
~Thanks for the tip. I actually didn't even think about that for the solution code. *Note to self for future puzzles.
The Bard
on 13. February 2024, 21:03 by talldrinkofwater
Really fun and very approachable for a yin-yang puzzle. There's only a couple small tricks, but once you find them it solves very smoothly. Thanks The Bard!
~Thank you, and I am glad you enjoyed it.
The Bard
on 12. February 2024, 20:14 by HumanBirdsong
A lovely ruleset and well-constructed puzzle. Thanks!
~Thank you for the kind words.
The Bard
on 12. February 2024, 19:40 by Baklin
That was fun. I made a wrong deduction on my first try, but the 2nd try was a quick solve for me.
~Glad to see you enjoyed it. Also glad that I am not the only one who trips up sometimes and needs to just start over.
The Bard
on 12. February 2024, 17:48 by VitP
noice
~
~Manly Head Nod, back at you.~
The Bard
on 12. February 2024, 13:49 by fopkovic
Flows nicely. Thanks for sharing!
~My pleasure!
The Bard
