Where are all the indexes?
(Published on 25. July 2025, 15:35 by Burak Alver)
Rules:
Sudoku: Normal sudoku rules apply, i.e., each row, column, and 3x3 box must contain digits 1-9 once each.
Column indexers: A cell marked in red in column X indicates the column where the digit X appears in that row. All possible index cells are marked in red.
Killer cages: Digits in cages must sum to the number in the top-left corner.
Kropki dots: Digits separated by white dots are consecutive. Not all dots are given.
Renban Lines: Purple renban lines contain a set of consecutive digits in any order without repeats.
German Whisper Lines: Two cells connected by a green German Whisper Line must have a difference of at least 5.
Dynamic Fog: The grid is mostly covered by fog. Placing a digit correctly removes the fog from that cell and possibly from some other cells.
Solution code: Digits in row 5, from left to right.
Comments
on 28. July 2025, 22:06 by NotSoMagnifique
Very fun once I started getting the meaning a bit better.
on 27. July 2025, 18:41 by ColleDK
Feels more like 1* for me
on 26. July 2025, 11:57 by Martina
Ok, if it is red, its value is its column number. Got it, thanks.
Not necessarily, but it is one possibility.
on 26. July 2025, 08:07 by Martina
Could you expand on that constraint please?
It means that unless a cell is marked in red in column X, it should not index the digit X in its row, which, of course, has a certain implication on how a row should be filled based on the colors of its cells.
on 25. July 2025, 17:17 by Fisherman
A great puzzle. This confident setter did not make a taboo of fair use peeking for colors. We're grateful.
on 25. July 2025, 17:16 by wjdrumm
Took me a little while to wrap my brain around the constraint, but once I did it was nice and smooth. Thanks for the puzzle!
