Indexification (Dyn Fog)
(Eingestellt am 4. Februar 2025, 15:19 Uhr von Fenners)
I normally get quite boggled with index cells, so I thought I'd have some practise setting a puzzle with it as a prominent rule. I found by the end it started to sink in! Also, learnt to implement dynamic fog for the first time!! Enjoy and any feedback very much welcomed.
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Puzzle: Indexification
Rules:
Normal 9x9 Sudoku rules apply. Place the digits 1-9 once each in every row, column and 3x3 box.
Dynamic Fog: Correctly placed digits may or may not clear fog from the grid.
German Whispers: Adjacent digits along a green line must differ by at least 5.
Killer Cages: Digits in a cage cannot repeat
Indexers: A blue cell in row X indicates the row where X appears in the column. A red cell in column Y indicates the column where Y appears in the row. A blue AND red cell acts as a blue cell and a red cell at the same time.
Lösungscode: Row 9, left to right, no spaces:
Kommentare
am 27. April 2025, 10:26 Uhr von TeddieMilo
A bit confusing at the beginning about the indexing rule but got adapted and becoming more fun.
Maybe next time can give some exanples for better clarity.
TQ!
am 26. März 2025, 01:27 Uhr von ostio456
I finished, I loved it, yet I am still clueless on indexing. Might take me some time to infiltrate this indexing business.
am 14. Februar 2025, 23:11 Uhr von dzamie
Nice! Dynamic fog works really well with this. My only troubles were self-inflicted: forgetting which color went to which axis.
am 6. Februar 2025, 02:11 Uhr von fishsaltyak
So much fun!
am 5. Februar 2025, 21:34 Uhr von rainingfish
The use of the dynamic fog had me second guessing myself at first, but once I got going I found the various constraints interacted quite beautifully!
am 5. Februar 2025, 04:12 Uhr von kirb
I agree that this was certainly challenging for someone unfamiliar with indexing (i.e. me!). It took me a while to figure out, but afterwards was a very nice solve :)
am 5. Februar 2025, 00:39 Uhr von MarthaB
Fantastic puzzle!
am 4. Februar 2025, 23:42 Uhr von mmm
I don't understand the indexer rule. Could someone explain it to me? maybe with an example
Fenners: Take the red cell in the bottom left of the visible box. This is in column 4. Place a 7 in it. Then the 4 must go in cell 7 of that row. Now place a 2 in it. Then the 4 must go in column 2 of that row. The same is true for the cyan cell in the upper corner except it indexes the column. This cyan cell is in row 4. Place a 7 in it. Then the 4 goes in cell 7 of that column. Place a 2 in it. Then the 4 goes in cell 2 of that column.
Think where does the digit go along the row (R) for red (R). Think where does the digit go down the column (C) for cyan (C). I know it's more of a blue but it helps me remember.
am 4. Februar 2025, 22:22 Uhr von therealsillypenguin
Great puzzle! Personally, I disagree with the below commenter, and think 1* is fair, as it's pretty easy if you're familiar with index puzzles.
am 4. Februar 2025, 20:35 Uhr von PinkNickels
Very fun! Clever setting.
am 4. Februar 2025, 20:29 Uhr von anyeyeball
I love indexing sudoku, and this is a great one. Thanks for sharing.
am 4. Februar 2025, 20:28 Uhr von softie
That was certainly mind-boggling. No way is it 1*!
Fenners: I originally categorised it as as 2* but the people have spoken. I think it could go either way depending on familiarity with indexing.
am 4. Februar 2025, 18:01 Uhr von Wuschel
Beautiful, great use of fog. I loved the striped cells.
