Logic Masters Deutschland e.V.


(Eingestellt am 20. Juli 2023, 06:51 Uhr von zetamath)

[Special thanks to Microstudy for help making this grid look as pretty as possible.]

Normal sudoku rules apply.

Each circle marks the head of a familiar line constraint which takes the form of a snake of length from 2 - 9. The specific constraint is indicated by the color of the circle (or by a letter on the color blind friendly version). The circle contains the length of the snake. The snakes move orthogonally through the centers of some cells, and do not touch themselves orthogonally. Snakes may freely touch each other, but do not share cells.

The gray cells in box 4 are not part of any snake.

The featured clue types are as follows:

Renban (purple - R) : The digits on a renban line form a permuted sequence of consecutive digits. Digits do not repeat along a renban.

Region Sum Lines (Blue - S ) : The cells along a region sum line in each box it passes through sum to the same total. Region sum lines always occupy at least two regions.

German Whispers (Green - W) : Adjacent digits along a German whispers line differ by at least 5.

Modular Lines (Yellow - M) : Each string of three adjacent cells along a modular line contains one of 147, one of 258, and one of 369. Length two modular lines contain one of each of two of these groups.

Entropic Lines (Orange - E) : Each string of three adjacent cells along a modular line contains one of 123, one of 456, and one of 789. Length two entropic lines contain one of each of two of these groups.

Parity Lines (Red - P): Adjacent digits along a parity line have opposite parity.

Ten Lines (Gray - T) : Digits along a ten line must be entirely divided into non-overlapping groups of adjacent cells which sum to 10. Digits may repeat within these sums if allowed by other rules.

Have fun, leave a comment if you enjoy the puzzle!

Play this puzzle in SudokuPad

Play this puzzle in SudokuPad with letters to help tell the colors apart.

PS: I stream solving sudoku like puzzles three days a week. You can check out the channel, as well as some videos I have made about setting puzzles, at my YouTube channel here.

Lösungscode: Row 9

Gelöst von MicroStudy, sasheo, Mr_tn, tuturitu, gynu, sanabas, Geryyy, Las4one, Gryllulus, Steven R, Myxo, Piatato, Tamuha, pmadhini, OutOfMyMindBRB, bansalsaab, efnenu, GarageDoorOpener, AvonD, dennischen, ... pepe74287, fluffy, HKtrying2, OldCaptainWZJ, -Tsigje-, h5663454, GertVonnegut, Frutlop, IAlreadyHaveAKey, einferd, Salzkoernchen, PippoForte, ManuH, jordanza, dogfarts, Luaryo, Unknown, SPring
Komplette Liste


am 11. September 2023, 22:51 Uhr von Jolly Rogers
This was a pleasure to solve from start to finish, it always felt like there was something to work with and not strainingly difficult. Great interactions :)

am 10. August 2023, 21:47 Uhr von Christounet
Beautiful and fun ! Thanks :)

am 28. Juli 2023, 12:07 Uhr von Niverio
Very smooth, very fun!

am 28. Juli 2023, 03:03 Uhr von twototenth
Excellent work as usual - challenging but clean.

am 28. Juli 2023, 02:30 Uhr von HumanBirdsong
This felt like a ‘greatest hits’ album of all the best logic available for each line type. Just a fantastic experience to work through the puzzle and score my first four-star solve. Thank you so much, zetamath!

am 25. Juli 2023, 17:46 Uhr von DaniK
Wonderful puzzle! I was not initially convinced to try it because of the quantity of rules but I glad I did. It was super fun and with a great flow. Thanks!

am 24. Juli 2023, 19:16 Uhr von Silverbyte
Excellent! A lot of fun

am 23. Juli 2023, 21:50 Uhr von chalk235
great fun!

am 23. Juli 2023, 20:46 Uhr von samuel1997
Brilliant puzzle! Surprisingly approachable for me! I think this may be a 3* puzzle, and it could be a tutorial puzzle for those who are beginners for BYO puzzles.

am 23. Juli 2023, 15:07 Uhr von Fool on Hill
Great puzzle - enjoyed it lots: plenty to think about

am 23. Juli 2023, 00:16 Uhr von Nordy
Holy interactions, Batman!

am 22. Juli 2023, 23:30 Uhr von karlmortenlunna
Absolutely fantastic!

am 22. Juli 2023, 13:36 Uhr von erml
What a joy!

am 21. Juli 2023, 20:27 Uhr von redgecko
Absolutely brilliant. Loved every step and as a non expert would say fairly approachable for a 4*. Keep em coming Z.

am 21. Juli 2023, 19:47 Uhr von yttrio
I'm not sure there's much more that can be said that isn't already in the comments. This is one of my favorite puzzles that I've solved recently!

am 21. Juli 2023, 17:57 Uhr von Blashyrkh
Ridiculously good, so many clever little moments in a single puzzle.

am 21. Juli 2023, 07:33 Uhr von Silverscree
This puzzle just doesn't stop giving! Eureka!

am 20. Juli 2023, 22:54 Uhr von madhupt
Very sayisfying puzzle! Beautiful break-in and so smooth after that.

am 20. Juli 2023, 22:25 Uhr von tesseralis
absolutely amazing that this solves with nothing in the bottom. Another masterpiece with plenty of jaw-dropping moments!

am 20. Juli 2023, 21:12 Uhr von Bankey
Brilliant puzzle. Thanks, @ zetamath:).

am 20. Juli 2023, 20:19 Uhr von shteev
I didn't find this very hard, but it was fun!

am 20. Juli 2023, 19:51 Uhr von OutOfMyMindBRB
What a work of art! Beautiful :-)

am 20. Juli 2023, 18:48 Uhr von Snookerfan
Smooth as butter and very nice! Thank you

am 20. Juli 2023, 17:05 Uhr von GeorgeTheToad2
Great puzzle Zetamath. Took ages to break-in but once in it flowed smoothly. Thank you for sharing.

am 20. Juli 2023, 16:58 Uhr von Starlight
Another beautiful puzzle with perfect logic by the master. So glad I managed to get through this, it's hard but definitely doable.
It's possibly my favourite puzzle so far

am 20. Juli 2023, 16:08 Uhr von bansalsaab
Beautiful puzzle.

am 20. Juli 2023, 15:32 Uhr von OutOfMyMindBRB
What a work of art! Beautiful :-)

am 20. Juli 2023, 13:50 Uhr von Piatato
Cool puzzle!

am 20. Juli 2023, 13:50 Uhr von Myxo
Lovely puzzle!

am 20. Juli 2023, 13:46 Uhr von Steven R
Beautiful puzzle, thanks!

am 20. Juli 2023, 11:46 Uhr von ONeill
Neither link is working for me

am 20. Juli 2023, 09:07 Uhr von sasheo
What a great way to sssstart the day!
The flow was so nice, they felt like eels. :D

am 20. Juli 2023, 08:41 Uhr von MicroStudy
lovely snakery

Bewertung:98 %
Gelöst:158 mal
Beobachtet:1 mal


Lösung abgeben