Erica 9
(Published on 14. November 2025, 17:15 by SennyK)
This time Erica became extreamly challenging, so it is not recommended to everyone.
However, do not worry, I promise to make 10th episode nice and easy.
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).
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: First (1st) row of the grid from left to right.
Comments
on 10. December 2025, 15:27 by mezkur7
I can't believe this puzzle is rated 3 stars. The standards of these ratings are inflated steadily, and now an average puzzle is very hard to solve.
on 15. November 2025, 12:03 by Snookerfan
Very nice, thanks!
on 14. November 2025, 21:52 by ketchup_monster
Super fun puzzle! The break in had me coloring all over. Almost looked like an abstract painting of Erika at one point.
on 14. November 2025, 21:43 by Adrian71
Lovely puzzle! Challenging indeed, although not as hard as I feared. Enjoyed it a lot, thank you!
on 14. November 2025, 19:41 by PinkNickels
Stupendous!
