Broken Flashlight in the Dark
(Eingestellt am 22. Oktober 2025, 06:49 Uhr von SennyK)
I hope you will enjoy my first fog puzzle and fourth puzzle in general!
I would be really grateful for all the comments and ratings.
Hint if you are really stuck towards the end (highlight to see):
R4C9 is restricted.
Normal sudoku rules apply.
Dynamic fog: The grid is partially shrouded in darkness. Entering correct digits may lighten the darkness somewhere in the grid. No guessing is required.
Arrow: Digits along an arrow sum to the number in the attached circle or pill. Pills read from top to bottom.
Numbered rooms: A clue outside the grid indicates the digit which has to be placed in the Nth cell in the corresponding direction, where N is the digit placed in the first cell in that direction.
Kropki dots: Digits in cells joined by a white dot are consecutive. Digits in cells joined by a black dot are in a 1:2 ratio (i.e., one digit will be double the other).
Extra white dot rule: Each white dot joins cells which belong to the same constraint (e.g., there might be several arrows, but white dot joins two cells belonging to the same arrow).
German whisper: Neighbouring/adjacent digits along a green line have a difference of at least 5.
Renban: Digits along a purple line form a set of consecutive digits in any order.
Clones: Red-shaded regions are clones of one another; digits appear in exactly the same positions in each shaded region.
Palindrome: Digits along a palindrome read the same in both directions.
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.
Lösungscode: Fifth (5th) row of the grid from left to right.
Kommentare
am 8. Januar 2026, 02:50 Uhr von Kawkaz
Very fun puzzle, besides that almost-impossible deduction towards the end, the one that the provided hint solves. Without the hint the difficulty is 5* for me
am 17. Dezember 2025, 11:19 Uhr von Myfyr MJ
The palindrome wasn’t easy to find and I am not really sure how I found it if it wasn’t some sort of bifurcation.
am 24. Oktober 2025, 18:14 Uhr von SudokuFan
The rules need to clarify that there is more than one clone region in the puzzle
SK: This is exactly what clones are - at least two identical regions - therefore there is no possibility to have only one such region. Therefore, I disagree with your comment.
am 23. Oktober 2025, 11:20 Uhr von SennyK
According to your feedback, I have amended Clones to red-shading. Thank you for all the insights!
am 22. Oktober 2025, 22:50 Uhr von ShadyAshley
I really enjoyed this one! The deduction toward the end wasn't as bad as some other commenters suggest, in my opinion; it was quite reasonable and pretty cool. Nicely done!
I do agree with the feedback that the shaded cells are really hard to distinguish from the fog though; shading with a different color might be easier to read.
am 22. Oktober 2025, 18:45 Uhr von QuiltyAsCharged
That one step towards the end is tough, and it's better if a puzzle can avoid such a jump in difficulty. However, I still really enjoyed it and there are really creative ideas in here! I look forward to trying your future creations.
SK: Thank you for the comment! I was thinking about clearing the fog without this step, but I have decided in the end that I will leave it there. If someone managed to go so far in the puzzle, then they will try hard to find it, and it won't hurt to go through a little brainstorm :D
am 22. Oktober 2025, 08:26 Uhr von JohnGisMe
This puzzle had a very interesting break in, and it was wonderful seeing it come together as each step was unlocked.
