Entwined (Index Lines, Entropic Lines, Sum Dots)
(Published on 26. June 2025, 15:00 by Crusader175)
Normal sudoku rules apply.
All lines are both Index Lines and Entropic Lines.
Index Lines: The digit in the Nth cell along a line (starting from the diamond) indicates the position along the line where the digit N appears.
Entropic Lines: Any set of three sequential cells along a line must contain a low (1,2,3), middle (4,5,6), and high (7,8,9) digit.
Sum Dots: Digits around the brown diamond may repeat and must sum to the given total.
Puzzle Link: SudokuPad
My youtube channel on solving sudoku: Crusader Puzzle
Solution code: Column 5
Comments
on 14. July 2025, 08:40 by SirRanch
An exquisite puzzle!! I loved having to deduce and apply the patterns that emerged due to the rules, which made the solve really rewarding. Unlike any other sudoku I have played so far. Fantastic and fun!!
Reply: I want to make the solve rewarding once you found all of the properties, so I'm glad to hear! Thank you!
on 14. July 2025, 05:05 by etoler
VERY cool puzzle. Perplexing at first, but once you get it, you get it.
Reply: Thank you for the solve and kind comment etoler!
on 14. July 2025, 00:30 by damo_89
Surprising things to discover, and not too hard. Just all round really nice.
Reply: Thank you so much damo! Glad you liked it!
on 13. July 2025, 22:48 by Hay-in-needlestack
Beautiful transformation of logic.
Reply: Pretty much describe the puzzle. Thank you!
on 27. June 2025, 20:10 by Exigus
Just amazing how it all fit together. Thanks!
Reply: Thank you very much Exigus!
on 27. June 2025, 19:19 by Snookerfan
Really fun puzzle! A very smooth solve once you understand the full implications of the rules. Thank you
Reply: Glad you had fun! Thank you for solving Snookerfan!
on 27. June 2025, 10:21 by farodin64
Wow, what a puzzle!
And "only" 96%.
If ever a puzzle should get 100%, it's this one!
Reply: I'm happy the puzzle is well received. Thank you farodin64!
on 26. June 2025, 23:39 by antiknight
Cool idea!
Reply: Glad you like the puzzle! Thanks antiknight!
on 26. June 2025, 21:55 by Willkimo
What a pleasantly surprising solve!
Reply: Thank you for solving Willkimo!
on 26. June 2025, 17:05 by DadJokes
The indexing entropic lines are a really neat discovery. Really cool how it all comes together.
Reply: I think the dots blends well with the lines. Thank you DadJokes!
on 26. June 2025, 16:55 by Qodec
Feels like a discovery really. What a beautiful and natural solve!
Reply: Thank you very much Qodec! Glad you like it!
on 26. June 2025, 15:46 by riffclown
Nice use of the Sum Dots and "other" logic.
Reply: Thank you so much riffclown!
on 26. June 2025, 15:45 by vitaminz
A brilliant construction with perfect clue placement. The implications of the index/entropic combo are incredible to discover.
Reply: Thank you for the test solve help and kind comment vitaminz!
