Figure 8
(Published on 12. March 2026, 16:49 by antiknight)
Rules:
- Sudoku: Normal Sudoku rules apply.
- Knight's move: Digits must not repeat in cells that are a chess knight's move apart.
- Arrows: The digits along each arrow must sum to the digit in the circled cell. Digits may repeat along an arrow if permitted by other rules.
- Renban: Digits along each magenta line must be a set of consecutive digits in any order.
- Nabner: Digits do not repeat along gold Nabner lines. Additionally, no pair of digits anywhere on a Nabner line can be consecutive.
Click the image to play in SudokuPad!
Enjoy!
Solution code: Column 1
Comments
on 3. April 2026, 10:19 by Djirt
Спасибо, за это великолепное судоку!
- Спасибо за отзыв!
on 2. April 2026, 04:11 by psams
Very interesting. I especially enjoyed the logic to determine the 2 cell renban in box 8. The puzzle was so symmetrical, I kept thinking there would be two solutions right up to the final disambiguation.
- Thanks for the feedback and your comment! I tried different places to break the symmetry but was happy with this one.
on 1. April 2026, 13:31 by alta1r
Gorgeous. Insanely hard to me (couldnt have solved it without some of CTC Simon's insights along the way), but the avalanche of digits in the end was really satisfactory :)
- Thanks for the feedback and yes the avalanche was intended because its not fair after that challenging break-in :)
on 16. March 2026, 21:55 by Arheus
Genius. So hard, but brilliant, all the way through the end!
- Thanks for the feedback and I'm glad you got through in the end :)
on 13. March 2026, 13:42 by Snookerfan
Great puzzle with a brilliant break-in, thanks!
- I'm happy you enjoyed the break-in! Thanks for your comment :)
on 13. March 2026, 12:13 by Elliott810
Absolutely brilliant! Thank you:)
- Thanks for the feedback :)
on 13. March 2026, 02:48 by Exigus
That was fantastic. I got focused on the wrong idea at the start but then the break in clicked. Very nice flow from there. Thanks!
- I'm glad you found it nice and enjoyed it. Thanks for your comment.
