Ten Ring Circus
(Published on 30. December 2025, 06:27 by JeffWajes)
By Jeff Wajes
Normal Sudoku rules apply.
Each gray line can be divided into segments of contiguous cells, where the digits in each segments sum to 10. These segments cannot overlap and every cell is part of exactly one segment.
Using red, green, and blue, color in all circles such that:
-Orthogonally adjacent circles are different colors.
-The digit inside a circle appears that many times in circles of that color.
Solution code: Row 1
Comments
on 17. February 2026, 00:11 by antioxidanti
this was the first variant sudoku I ever attempted, took me several sessions of a couple hours but got it done in 91 minutes today! Beautiful puzzle <3
on 9. February 2026, 21:53 by Exigus
Some very cool logic in there. Thanks!
on 1. February 2026, 02:19 by SHERAX
One of my favorites
on 23. January 2026, 19:01 by reformist
I had this puzzle open in a browser tab for over a week. I kept staring at it over the days refusing to abandon it. This morning I finally got at it and was rewarded with an incredible solve. So many layers to run deductions through from beginning to end. Just a beautiful setting. Thanks!
on 8. January 2026, 02:29 by antiknight
Gorgeous puzzle. I really enjoyed the mix of clear deductions and more subtly hidden logic.
on 5. January 2026, 17:39 by olc
took me 2 longer breaks to find the solution, but all the logic is incredibly nice, being able to figure this out step by step was a great journey
on 5. January 2026, 15:02 by jani
I took a rather long route and spent a lot of time deeply analysing the circle mechanisms, making notes along the way.
I suspect there was a more straightforward path, but I really enjoyed the depth.
on 5. January 2026, 10:34 by Nakedsinglehunter
Really cool!
on 5. January 2026, 08:12 by Euclid5040
It's the first 5 star sudoku I have solved. Normally I wouldn't have even attempted a puzzle of such a high difficulty, but I am quite glad I did. It was an incredible puzzle. It was challenging, but I was never stuck during the solve. And every time I entered a digit, the sense of accomplishment and joy I felt was incredible. Not only was this a truly magnificent puzzle, but the logic it used was such a beautiful logic that just felt right. I am in awe that someone made a sudoku this incredible.
on 5. January 2026, 03:33 by Clarence
Loved the puzzle and I can't believe I solved my first 5/5 puzzle. It's great how the color rule is key and at the same time you can't permanently color much in the puzzle, until the end of course.
on 4. January 2026, 18:11 by BG03
It was incredible how the puzzle felt very constrained and linear throughout, yet every breakthrough was quite hard. Never solved anything like this!
on 4. January 2026, 17:28 by SharpFox
Absolutely phenomenal!
on 3. January 2026, 14:47 by Djirt
Спасибо, головоломка просто великолепна!
on 3. January 2026, 03:11 by Jrosas
A very fun hard puzzle with straightforward directions.
on 2. January 2026, 17:07 by Voidslime
Incredible
on 1. January 2026, 02:08 by little_turd
I am going to print out a certificate congratulating myself on completing this puzzle, and I'm going to hang it on my wall, and make sure every guest notices it as they walk in. It'll be the first thing listed on my resume, with the heading "Greatest Accomplishments", when I apply for jobs. When I'm on a date, I'll subtly mention that I solved this Sudoku, so they can see that I can commit to a long-term relationship from the many hours it took to solve. By far the best Sudoku experience I've ever had.
on 31. December 2025, 18:07 by SenatorGronk
Fantastic, thanks!
on 31. December 2025, 13:08 by SirWoezel
Excellent puzzle!
on 31. December 2025, 11:52 by Snookerfan
Awesome! There is so much information, but the trick is obviously how to get it. That was a great journey. Thanks
on 30. December 2025, 16:15 by mihel111
Brilliant puzzle.
on 30. December 2025, 15:44 by Guvenistan
This was so fun! The slow-drip of revelations for this puzzle was really engaging.
on 30. December 2025, 13:04 by andreatetta
Really enjoyed the 3-coloring rule!
