Logic Masters Deutschland e.V.

Crossing a Line

(Published on 6. July 2025, 12:20 by RoystonDA)

This is my first ever attempt at creating a puzzle. Thanks Black_Doom and Marty_Sears for showing me the ropes! I hope you all enjoy

Standard sudoku rules apply.

German Whisper Lines: Digits along a green line must differ by at least 5.

Modular Lines: Every set of 3 digits along a teal line must include a [1,4,7] [2,5,8] and a [3,6,9]

Entropic Lines: Every set of 3 digits along a peach line must include a [1,2,3] [4,5,6] and a [7,8,9]

Kropki dots: Cells separated by white dots are consecutive. Cells separated by black dots are 1:2 ratio

CTC Link

Solution code: Row 9 left to right

Last changed on on 6. July 2025, 22:41

Solved by NineK, Photyne, Inge, KoalaDias, karlmortenlunna, sujoyku, saxdaddyj, Black_Doom, Gosciola19, edd, cmigas, fuxia, dielilla, SKORP17, Merovius, drf93, rae_cat, PinkNickels, Gizmo, Uhu, LehanLehan, ... PalkaSalyami, JVA, jcg5a, W1n5t0n, Tompzini, tgstar, abadx, BakBak, sort, NEWS, Rcolley5, abihummel, timww572, m_and_m_toastie, stafen, beea, Frank Puzzles, ContreBombarde32, Jodelbanane, jsxft
Full list

Comments

on 24. July 2025, 01:27 by Frank Puzzles
Nice puzzle. Just a comment, the German Whisper rule hasn't changed in the Sudokupad link, so might be good to fix that there.

Good setting!

on 11. July 2025, 13:49 by abadx
Not for beginners. 2 stars

Last changed on 11. July 2025, 22:37

on 10. July 2025, 19:18 by JVA
I pity whoever sees this puzzle rated 1* and thinks it's approachable

on 8. July 2025, 22:39 by Jenny2928
This is such a great first puzzle, kudos! The coloring phase solves so beautifully

on 7. July 2025, 12:54 by VitP
you need considerable experience with the relevant constraints in order to solve this comfortably. THEREFORE, difficulty 2 is more accurate.

on 7. July 2025, 08:02 by damo_89
Lovely stuff

on 7. July 2025, 06:10 by h1dd3ntrip7e
Great puzzle, neat interplay between entropy and whispers, for sure!

on 7. July 2025, 03:51 by macintux
Very nice puzzle, especially for a first attempt. Loved the deductions during the coloring phase. Thanks

on 6. July 2025, 22:41 by RoystonDA
Corrected German Whisper rule

on 6. July 2025, 16:30 by fuxia
Nice puzzle! Maybe adjust the German Whisper rule to "differ by at least 5", because exactly 5 is impossible.

on 6. July 2025, 14:58 by sujoyku
Thank you for this nice puzzle, RoystonDA! I hope we get to see more of your creations. :)

on 6. July 2025, 13:43 by Inge
Very nice puzzle

on 6. July 2025, 13:37 by RoystonDA
Changed description to correct entropic line colour

on 6. July 2025, 13:23 by Photyne
Fun puzzle, but the entropic lines are peach not teal.

on 6. July 2025, 13:22 by Photyne
Fun puzzle, but the entropic lines are peach not teal.

Difficulty:1
Rating:94 %
Solved:120 times
Observed:2 times
ID:000O3P

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