Logic Masters Deutschland e.V.

Erica 11

(Published on 17. November 2025, 17:15 by SennyK)

Erica 11

Hi everyone! To start with, tomorrow's episode will be very easy fog edition of Erica! :-)
But today's Erica requires persistence and crayons of course, in my opinion it is really approachable though! :-)
I hope you will enjoy and I would be really grateful for all the comments and ratings.

Normal sudoku rules apply.

German whisper: Neighbouring/adjacent digits along a green line have a difference of at least 5.

X/V: Digits in cells joined by an X sum to 10. Digits in cells joined by a V sum to 5. Not all Xs and Vs are given.

Entropic: Any sequence of 3 adjacent digits along a peach line must have a low digit (123), a medium digit (456) and a high digit (789).

SudokuPad Link

Entropic Line Explanation:

Basically, if one digit on the line is low, then every third digit will also be low; same applies for the remaining groups.

If you liked this puzzle, I recommend trying out my other puzzles:

The Erica Series:
☆☆☆☆: 1, 2, 4, 5, 6, 12, 15, 17, 23, 26, 27
★★☆☆☆: 3, 7, 8, 10, 11, 13, 14, 16, 18, 20, 24, 25
★★★☆☆: 9, 19, 21, 22

Shading/Ying-Yang:
★★☆☆☆: Pretty Odd Shaded Area
★★★☆☆: (+5)-Yang, Negative 8 YY
★★★★★: Why-Why?

Fog of War:
☆☆☆☆: Erica 12, Erica 17
★★☆☆☆: It's What You Do in the Dark That Puts You in the Light, Find It All, What the Fog?, Erica 20
★★★☆☆: Broken Flashlight in the Dark

Pencil Puzzle/Sudoku Hybrid:
★★☆☆☆: Masyu (Short) Sudoku
★★★☆☆: Tetromino Sudoku

Various Puzzles:
☆☆☆☆: Blown Fuses in Electrical Installation, Let Me Introduce Myself, French Wrench
★★☆☆☆: Symmetrical Fan, Night Club, Important Hour on the Clock, What Was the Sum Again?, Disgroup Joints, 10-Arrows, Antiking Dutch Skyscrapers
★★★☆☆: Cops & Robbers, Positive Symmetry, Doppelgänger Killer 1-25
★★★★: Liars. Liars Everywhere.

Solution code: Ninth (9th) row of the grid from left to right.

Last changed on on 12. December 2025, 23:26

Solved by gdc, Megalobrainiac, noodlehead, pepe74287, Snookerfan, TripleABattery, ketchup_monster, weiken, Nikamar, ole-1995a, Moonsinh, Elliebot, illegel, sparkymanu, gxorgx, BBoris, SKORP17, Cascade, ... belnovic, Krokant, anthe95, DaFunkyMonk, tjcvirage, Kigor, bugsduggan, koiking, timww572, Blummy, PinkNickels, Emigma, sunevora, whtshername, Ikke Moon, AlexRaetselt, zrbakhtiar, Snaques, jnmh
Full list

Comments

on 30. November 2025, 21:16 by SocratesRanz
I am fairly experienced, so I knew the tricks required. Nevertheless, the interactions among the tricks are subtle, and I found it very easy to make mistakes. Therefore I rated it 4 stars.

on 29. November 2025, 22:22 by Cyprane
I got stuck multiple times. I still have a long way to grow in my Sudoku skills. Wonderful design. Thank you.

on 18. November 2025, 15:09 by VitP
level 2 for COMPLEXITY.
level 3 for EFFORT required.
also, there are a couple necessary tricks that beginners will not recognize.

Last changed on 17. November 2025, 22:42

on 17. November 2025, 22:34 by sparkymanu
Thank you for this 11th Erica, fun as always!
If Erica 9 is a 3*, I would consider this one as 1 or 2* tho

SK: Thanks for solving! Erica 9 was initially set by me as 4*

on 17. November 2025, 19:34 by ketchup_monster
Super fun Erika puzzle as usual! :)

Very approachable and colorful.

on 17. November 2025, 19:06 by Snookerfan
Fun, thank you!

Difficulty:2
Rating:95 %
Solved:170 times
Observed:0 times
ID:000Q4P

Variant combination Online solving tool

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Solution code:

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