Graded on a Curve (with sujoyku)
(Published on 7. March 2025, 19:24 by ChinStrap)
Back again with another sujoyku collab. We continued exploring interactions of index lines with other constraints, and as always found there were interesting things to be had. Thanks to all who tested and we hope you enjoy!
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.
- Nabner Lines: The yellow lines are Nabner Lines, i.e. on such a line there may not be consecutive or repeated digits. For example, if a 5 lies on a Nabner line, this line may not contain another 5 and neither a 4 nor a 6.
All feedback (positive or critical) appreciated!
Solution code: Row 5 from left to right (9 digits in total)
Comments
on 31. March 2025, 16:09 by Schlaufuchs
This puzzle was absolutely astonishing! Every single deduction was so joyful and breathtaking! It's simply amazing and left me speechless! One of the most incredible puzzles I've ever solved!
on 8. March 2025, 22:27 by cg24
thanks to you two index lines are now one of my favourite constraints :) amazing puzzle
on 8. March 2025, 16:16 by glum_hippo
Fun, yet sinister
on 8. March 2025, 11:42 by Snookerfan
Sublime! Thank you
on 8. March 2025, 07:19 by Fizz
Very fun puzzle with nice logic all the way through the end, thanks a lot!
on 8. March 2025, 06:52 by Voidslime
Loved the logic and loved the line style
on 8. March 2025, 02:51 by Willkimo
Very enjoyable! I forgot how to use nabner lines for a third of the puzzle, but still fun. Lots of little eureka moments.
on 8. March 2025, 02:40 by ofsmul
Great flow, really enjoyed this one. Thanks!
on 7. March 2025, 22:19 by Chaka
Wow, another blast granted by the sudoku dream team... I usually avoid nabner puzzles but this combination with index lines is 100% worth trying. Thank you guys for this treasure! <3
on 7. March 2025, 21:49 by marty_sears
Another lovely one! I'm not always a fan of curved lines when they cause the grid to look more messy and unclear than if straight lines are used. But this was an absolutely perfect use of curves... crisp, clear, beautiful!
on 7. March 2025, 20:38 by GT-R Penguin
Woo hoo! I managed to solve a ChinStrap & Sujoyku puzzle! Loved this from start to finish. Thank you both!
on 7. March 2025, 19:43 by aqjhs
you're not cutting corners on aesthetics here!
on 7. March 2025, 19:34 by sujoyku
Soon we will lose count of our collabs. :)
Thank you for all the wonderful co-setting sessions!
