Polar Attraction (Killer Sudoku)
(Published on 25. March 2023, 16:57 by Piatato)
Rules:
1) Normal Sudoku rules apply. Every row, column, and box must contain the digits 1-9 with no repeats.
2) Standard killer rules apply. Within each cage, digits cannot repeat, and must sum to the number in the top-left corner (if given).
Solution code: Row 5 and column 5
Comments
on 10. March 2024, 21:04 by Christounet
Super construction ! Thanks :)
on 15. August 2023, 13:16 by Snaques
Very nice one!
I was constantly thinking that I'm working on an entropy puzzle with the way the cells worked in this one.
on 24. July 2023, 00:18 by tesseralis
So nice it was featured twice :) Some really fun pieces of logic here!
on 5. May 2023, 16:47 by Fuuryuu
Took us quite a bit to see the disambiguation, at which point it was quite densely colored
on 5. May 2023, 08:00 by dennischen
This puzzle is beautiful. Stunning how you got everything to work :)
on 7. April 2023, 19:52 by wisty
Really fun puzzle with great use of entropic grouping to force a unique interaction. I love how there are two main parts to the puzzle, a geometric side and a mathy side, and somehow once you fit the two together everything just resolves in a matter of minutes. Great setting!
on 6. April 2023, 22:09 by Bellsita
One of the best killers I ever solved! Wow. That was awesome. Thank you!
on 6. April 2023, 18:55 by dumediat
This is one of the best (if not the best) killer sudoku I have ever solved. The logic was beautiful, and for me the break-in to place the first digit was jaw-dropping. Thank you so much for the puzzle!
on 6. April 2023, 12:50 by sujoyku
Thank you for this amazing puzzle, Piatato! When I just saw your comment under my killer sudoku I remembered that I still had not commented here. :)
I had to return to this puzzle a few times before I succeeded to solve it. While I quickly found a lot of conclusions I missed a crucial step after which everything unfolded at ease. This is definitely one of my all-time favourite killer sudokus and I think it deserves a feature on CTC.
—Thanks a lot! :-)
on 31. March 2023, 20:27 by lerroyy
Very nice puzzle!
on 28. March 2023, 18:57 by Nordy
I am honored that I inspired such an awesome puzzle!! Thanks :)
on 27. March 2023, 19:53 by puzzlepandit
Good one! One of those which after you solve gives you a lot satisfaction.
on 27. March 2023, 14:50 by GeorgeTheToad2
Excellent break-in and smooth solve path, very enjoyable.
on 26. March 2023, 21:01 by Piatato
Thanks to everyone for the solves, the amazing comments, the video (although I'm still waiting for my girlfriend to have time to translate some of it for me :D ) and even the attempt at some controversy. It truly makes me happy! :)
Also, huge thanks to Nordy, whose killer sudoku directly inspired some of the main geometric ideas in this puzzle.
on 26. March 2023, 20:59 by Piatato
Changed the links since the answer check apparently didn't work in the sudokupad link.
on 26. March 2023, 16:31 by econtrout
Very rewarding break-in. Nice puzzle all around with some cool logic.
Thanks!
on 26. March 2023, 15:44 by abed hawila
Sublime!
on 26. March 2023, 15:23 by Samish
Great interactions, super fun to work out!
on 26. March 2023, 07:18 by wenchang
VERY nice setting. Spoiler alert!
https://youtu.be/o-DXmEReMiQ
on 25. March 2023, 20:35 by Playmaker6174
A great display of geometric interactions, lots of lovely deductions in here :)
on 25. March 2023, 19:02 by polar
@Playmaker: very much so
Thanks for the lovely tribute Piatato (just kidding, but it was a very cute puzzle)
on 25. March 2023, 18:04 by Playmaker6174
I'm sure polar will be interested in this one :)
on 25. March 2023, 17:19 by tallcat
Very nice construction and excellent use of geometry.
