Or is it?
(Published on 31. August 2025, 15:50 by sujoyku)
Rules:
- Normal sudoku rules apply, i.e. each row, column, and 3x3 region has to contain the digits from 1 to 9 once each.
- Index Lines: Each turquoise line is an Index Line, i.e. the digit in the Nth cell along such a line (starting from the diamond) indicates the position along the line where the digit N appears. For example, if a diamond cell contains a 3, the third cell along that line must have a 1.
- Up to N-sums: A clue outside the Row or Column N indicates the sum of all digits up to the cell that contains the digit N. (The digit N itself is not included in the sum.)
Here you can solve the puzzle online:
Solution code: Column 2 from top to bottom (9 digits in total)
Comments
on 11. November 2025, 21:19 by Lenivaya_Joppa
Thank you for this nice puzzle, dear sujoyku! :)
The solve had a really nice flow and I like the combination of index lines and up-to-N sums. :)
**
Thank you for your comment, Lenivaya_Joppa! As Index Lines and Up to N are among my favourite constraints, it is great to hear you liked this combo as well.
Kind regards, sujoyku
on 5. October 2025, 14:46 by Zibl
Lovely puzzle! Have opened this about 10 times and never gotten anywhere, today it clicked and everything just flowed wonderfully. Thank you, sujoyku!
**
You are much welcome, Zibl, thank you for sticking with the puzzle and thanks for your comment! I am glad it clicked and you enjoyed it.
Kind regards, sujoyku
on 1. September 2025, 22:38 by MSDOS
What a nice balance of contraints, loved the flow!
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Thank you for your comment, MSDOS! It is great to hear you enjoyed the flow of this puzzle.
Kind regards, sujoyku
on 1. September 2025, 14:23 by Franjo
Die wenigen Hinweise sind beeindruckend präzise gesetzt. Nach einem raschen Einstieg lieferte mir insbesondere die zweite 8 noch einen Kampf, den ich nur mit Mühe gewann. Tolles Puzzle! Vielen Dank dafür.
**
Sehr gern geschehen, Franjo, vielen Dank für deinen Kommentar! Es freut mich, dass dir das Rätsel gefallen hat. Ich war sehr zufrieden, dass so wenig Hinweise genügen (und es immer noch recht zugänglich ist). In meinem Pfad löst sich der 8-Clue ebenfalls als letzter Hinweis auf.
Herzliche Grüße, sujoyku
on 1. September 2025, 10:55 by Exigus
Fun and smooth, thanks!
**
You are much welcome, Exigus, thank you for commenting! I am glad that you had a fun solve.
Kind regards, sujoyku
on 31. August 2025, 23:51 by wuc
Constraints combine excellent. In early mid game there was a tricky step 3*ish to me. Fun all along. Great setting thx.
**
You are much welcome, wuc, thank you for your comment! I am glad that you enjoyed the puzzle. I thought its difficulty was about 2.5 stars, but testers told me it should be 2. If you like to discuss the particular step you were thinking of, feel free to describe it in a hidden comment.
Kind regards, sujoyku
on 31. August 2025, 20:37 by Playmaker6174
Pretty fun and smooth puzzle, thanks :)
**
You are much welcome, Playmaker6174, thank you for your comment! I am glad that you had a smooth solve.
Kind regards, sujoyku
on 31. August 2025, 20:01 by chinesemaster
The combination of my favorite two constraints!!! Thanks so much!
**
You are much welcome, chinesemaster, thank you for your comment! It seems we have a similar taste. It is great to hear that you like Up to N and Index Lines as well.
Kind regards, sujoyku
on 31. August 2025, 19:56 by Chaka
Lovely puzzle and a nice ruleset combination! Thanks for another great sudoku, sujoyku!
**
You are much welcome, Chaka, thank you for your comment! I am glad that you enjoyed this combination of constraints.
Kind regards, sujoyku
on 31. August 2025, 17:52 by NEWS
Erste Kommentar :)
Vielen dank, sujoyku!
**
Sehr gern geschehen, NEWS, vielen Dank für deinen Kommentar! Es freut mich, dass es Dir gefallen hat.
Herzliche Grüße, sujoyku
