Erica 29 (Fog Edition)
(Published on 7. January 2026, 17:15 by SennyK)
Erica is coming back to you from her vacation, and she does it in the form I think you like the most - covered in the fog!
There are only 2 little tricky moments including the break-in, the rest is kept to level 1*, so I encourage you to give it a try!
I hope you will enjoy and I would be really grateful for all the comments and ratings.
Normal sudoku rules apply.
Dynamic fog: The grid is partially covered in fog. Entering correct digit will clear fog from its cell and may clear fog somewhere in the grid. No guessing is required.
German whisper: 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).
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, 28 Shading/Ying-Yang:
★★☆☆☆: Pretty Odd Shaded Area
★★★☆☆: (+5)-Yang, Negative 8 YY
★★★★☆: (Yin)German Pairrows
★★★★★: 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, GAS Regional Constraints
★★☆☆☆: Symmetrical Fan, Night Club, Important Hour on the Clock, What Was the Sum Again?, Disgroup Joints, 10-Arrows, Antiking Dutch Skyscrapers, (Not so) Little Killers
★★★☆☆: Cops & Robbers, Positive Symmetry, Doppelgänger Killer 1-25, Region Whisper Line, Christmas Chaos
★★★★☆: Liars. Liars Everywhere., Sandwiched XV Squishmates, Fireworks 2025, (Yin)German Pairrows
Solution code: Ninth (9th) row of the grid from left to right.
Comments
on 9. January 2026, 17:27 by UnknownDjinn
I found this puzzle to be significantly more difficult from the break-in than a 1*. I somehow managed to get a couple of digits but, I never really understood why or how I ended up getting them. In the end I solved this it didn't feel good to solve as I never understood the logic that led me to the solve. Would love if someone could provide a youtube video explaining the logic and how the solve is suppose to unfold.
SK: Thank you for a comment. I have published this puzzle as 2* due to break in, you can reach me on Discord for explanation: Sennyk7
on 8. January 2026, 20:37 by Myfyr MJ
Nice puzzle but I found it rather hard.
on 8. January 2026, 04:25 by zrbakhtiar
Probably the easiest of the series
on 8. January 2026, 01:23 by sacklunch
Great puzzle, thanks for sharing!
on 7. January 2026, 19:12 by DaFunkyMonk
Enjoyable break-in!
