Logic Masters Deutschland e.V.

Sudoku Variants Series (341) - Two cell kropki Sudoku

(Published on 6. October 2021, 00:00 by Richard)

For this Sudoku Variants Project I have planned to publish a different Sudoku variant every week. I will see how long it takes before I am running out of ideas.

Two cell kropki Sudoku
Apply classic sudoku rules.
Kropki circles refer to the sum of the digits in the first two cells on either side of the circle. A white circle indicates that the two sums are consecutive. A black circle indicates that one of the sums is twice as big as the other. All possible circles are given.

Inspiration for this type comes from Old Miles.

Solve online in F-Puzzles (thanks SudokuExplorer!)
Solve online in Penpa+ (thanks kuraban!)

Solution code: Row 8, followed by column 7.

Last changed on on 9. October 2021, 07:27

Solved by SudokuExplorer, kuraban, Statistica, marcmees, rcg, Jesper, zuzanina, 111chrisi, azalozni, MariaL, Greg, ashwin, Rollo, geronimo92, smckinley, henrypijames, Mody, Krokant, KlausRG, SirWoezel, r45, ... cornuto, snowyegret, ildiko, ffricke, EKBM, Kwaka, Nick Smirnov, Uhu, sojaboon, Crul, NikolaZ, Frankenfruity, TomBradyLambeth, Angelo, Nothere, zorant, Carolin, apwelho, Nylimb, Nickyo, CHalb
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Comments

on 15. October 2021, 11:42 by pin7guin
Auch gut lösbar, wenn man keine spezielle Limonade (vgl. ID ;-) ;-) ;-) ) dazu trinkt...

Last changed on 11. October 2021, 21:28

on 9. October 2021, 11:17 by SirWoezel
Very pleasant puzzle. Thanks! if you ever do try my Two cell ratio kropki I’m sure you’ll notice very soon I actually had some similar thoughts setting it!
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@SirWoezel: if I had solved your puzzle earlier, than I would have searched longer for another break in in mine! Anyhow, it seems to be fun for more people to play a bit with this ruleset. ;-)

on 9. October 2021, 07:37 by Richard
I see that the number of solves is stil on the low side. Don't be scared off by the ruleset! There is an absolutely gorgeous and interesting break in in the puzzle. If you take a few minutes of thinking about the implications of (multiple) dots, you will discover the logic soon enough. I have written that logic in a hidden comment in case you didn't find it yourself and started writing all the possible combinations in C5.
Give it a go, there are links for online solving now. ;-)

on 9. October 2021, 07:32 by Richard
@bigger: I see what you mean, but I only write where MY inspiration comes from. Of course I have looked at the puzzles that you linked in your own puzzle description. I didn't solve SirWoezel's puzzle (yet?) and it has a different ruleset. I have looked long to PrimeWeasel's and couldn't find an opening. And it also has a different ruleset.
It makes no sense for me to link to those puzzles, since they didn't inspire me.
Don't mean to be rude, just explaining how I link to the ones that inspired me.

on 9. October 2021, 07:27 by Richard
Added links for online solving. Thx kuraban and SudokuExplorer!

on 6. October 2021, 22:05 by PrimeWeasel
In all honesty, I don't mind not being credited in this case, I'm glad you guys turned it into something much more solvable than the monster I made back then. Will attempt this one when I'll find the time Richard

on 6. October 2021, 11:28 by bigger
Technically speaking, the idea was from PrimeWeasel. I simply took part of the rules and ask Old Miles to flesh it out. SirWoezel and I just post an easier version to get people ready for the challenge. I guess I just didn't do the credit good enough for people to realize it's not all my idea. Like I said in the puzzles, the original puzzle from PrimeWeasel deserve more solves.

on 6. October 2021, 07:13 by kuraban
Some beautiful logic in this. Keeps challenging what you think you know.

on 6. October 2021, 06:08 by kuraban
f-puzzles - https://f-puzzles.com/?id=y223nnuv
(Remember to Disable Conflict Highlighting)
CTC App - https://tinyurl.com/xashtnyt

on 6. October 2021, 01:19 by SudokuExplorer
Here's a Penpa+ link: https://git.io/JV6XG

Lovely puzzle with fun logic! Those who like this variant may also want to try SirWoezel's "Two Cell Ratio Sudoku" (id=00053S).

Difficulty:3
Rating:94 %
Solved:54 times
Observed:7 times
ID:0007UP

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