Logic Masters Deutschland e.V.

Doublophilia

(Eingestellt am 1. Januar 2023, 22:48 Uhr von lepton)

This might be a good contender for the worst doubler sudoku of the year 2023. It's quite ok as an anti-knight extra region sudoku, but how it uses doublers is totally superficial.

Rules

Sudoku: Fill every row, column and 3x3 box with the digits 1-9.

Anti-Knight: Digits a chess knight's move apart cannot contain the same digit.

Killer: Digits in a cage cannot repeat and must sum to the total in the top left corner.

Doublers: One cell in every row, column, and box is a doubler cell, which doubles its value in cage totals. Doublers cannot appear a chess knight's move apart from each other.

Play this puzzle on CtC

Alternative version for those who prefer colors, XV and kropki dots is here.

Lösungscode: Row 6 followed by column 9, no spaces

Zuletzt geändert am 3. Januar 2023, 07:09 Uhr

Gelöst von Mad-Tyas, SKORP17, mathpesto, theweave, ViKingPrime, OutOfMyMindBRB, Calvinball, AvonD, jguer, cmigas, ScatterBrain, Leonard Hal, Dermerlin, martinsb, mattjhussey, Natalia_kyiv, dodomos, h5663454, ... KatiBru, Tolja, Uhu, GeorgeTheToad2, bbutrosghali, GUMBY92, Crul, zrbakhtiar, tobymgk, jorgenunez, Felis_Timon, dtoto, PippoForte, pepe74287, abadx, Chishiri, bolado, Trickyman, MaNCS, jadezki, Koba
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Kommentare

Zuletzt geändert am 16. Februar 2023, 15:47 Uhr

am 16. Februar 2023, 15:15 Uhr von asp1310
Is there a negative constraint on the Kropki/XV one or is there not?
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Did you post this on wrong puzzle?

No? You added a bonus Kropki/XV puzzle on this one (https://tinyurl.com/9fpvf273). I am asking if that has a negative constraint or not. I.e. Can two digits add up to 5 or 10, or be consecutive or in a 2:1 ratio, if they do not have a symbol between them on that bonus puzzle? Or not?
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Sorry, I completely forgot the bonus version. There's no negative constraint.

Thank you so much! Yeah I enjoyed your recent one and often go back through a user's past 1-2 star puzzles if that's the case! ...I was wondering if I could eliminate some colors based on it - if there was a negative constraint, if two colors were next to each other with a symbol, they would not be able to be next to each other somewhere without one. Now I'm scratching my head wondering what to do next! (In a fun way!)

am 8. Januar 2023, 03:44 Uhr von Redmuunk
beautiful

am 4. Januar 2023, 21:29 Uhr von chain.reader
The doubling version is quite good.
but
The XV/kropki one is VERY good.
I loved the challenging colouring excersise.

am 2. Januar 2023, 17:30 Uhr von Onyx
Very pleasing puzzle, the first part is nice but the second is nicer ^^

am 2. Januar 2023, 15:00 Uhr von lepton
Added link to alternative version.

Schwierigkeit:2
Bewertung:85 %
Gelöst:67 mal
Beobachtet:3 mal
ID:000CH1

Variantenkombination Online-Solving-Tool

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Lösungscode:

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