Logic Masters Deutschland e.V.

Across Roads (Deconstruction)

(Published on 6. January 2025, 19:55 by Sotehr)


PUZZLE


RULES

Deconstruction Sudoku: There exist nine non-overlapping 3x3 square regions which must be located. Each region contains the digits 1-9 once each, such that no digit repeats in any row or column. Cells outside these regions do not contain digits, but have a value of 0.

German Whisper Line: Values along a green line differ by at least 5.

Palindrome Line: Cells an equal distance from the center of a silver line have equal values.

NOTES
Expected Difficulty: 3.5 stars

This was set for Scojo's Setting Saturday Prompt, this week chosen by the wheel: Deconstruction, Palindrome, and German Whispers.

Many thanks to Memeristor, Malakree, Flinty and knalle83 for testing!

Cracking the Cryptic Feature.

Play Across Roads on SudokuPad.

Solution code: Row 11 digits only, left to right.

Last changed on on 26. May 2025, 05:27

Solved by Malakree, Flinty, palpot, karlmortenlunna, aqjhs, ViKingPrime, roflsalot, gxorgx, cbjenkins, SKORP17, purpl, Snookerfan, Da Letter El, Dentones, erml, Franjo, softie, Elliott810, mnhuik, hildende, ... QuiltyAsCharged, tome_coelho, redfoot, tecu, Tokerante, konklone, OGRussHood, Spyrfyr, Chishiri, dustpan, arauwer, Exigus, jinkela114514, Uhu, jzstarburzt, mihau730, Sewerin, NEWS, juggler, zeniko
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Comments

on 25. May 2025, 15:08 by wuc
One very tricky idea. Therefore 4* for me too. But very clever puzzle. Thx.

on 21. May 2025, 03:29 by dumediat
This was absolutely fantastic! I'm amazed at the breadth of logic that you were able to pack into this puzzle. I'm so glad I gave this one a try. :)

on 21. May 2025, 02:10 by Calvinball
I had a feeling I was going to love this puzzle, and that feeling wound up being very correct.

on 21. April 2025, 07:41 by virus_dave
This took me a LONG time and multiple attempts, but i am SO glad i stuck with it. Incredibly rewarding, and i learned a few things about deconstruction logic that i didn't know before.

Thank you!

on 12. January 2025, 20:01 by Voidslime
Wow that a wonderful and challenging puzzle! I was close to giving up but I’m glad i stuck it through

on 8. January 2025, 12:56 by Franjo
Brilliant setting for a beautiful deconstruction puzzle! Thank you very much for creating and sharing this masterpiece.

on 8. January 2025, 09:18 by Christounet
Very nice approachable deconstruction. The value 0 outside regions is a cool twist. Thanks :)

on 7. January 2025, 21:02 by softie
I really loved this. I'm proud of myself for solving it!

on 7. January 2025, 20:45 by Franjo
Brilliant setting for a beautiful deconstruction puzzle! Thank you very much for creating and sharing this masterpiece.

on 7. January 2025, 18:42 by Snookerfan
Beautiful puzzle! Lovely symmetry and powerful interactions of the constraints, very smooth. Thank you

on 7. January 2025, 17:02 by purpl
A great intro puzzle to deconstruction puzzles. I love how the region building interacts with the constraints in such a natural way.

Difficulty:4
Rating:98 %
Solved:105 times
Observed:11 times
ID:000LH1

Puzzle variant New

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Solution code:

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