- Normal Sudoku rules apply.
- Unknown X-Sums clues surround the grid.
- X-Sums clues indicate the sum of the first X seen digits in their respective row or column, where X is the first seen digit.
- White dots fall in between consecutive X-Sums clues.
- Black dots fall in between X-Sums clues at a 1:2 ratio.
Here's a suggested way of marking outside numbers on CTC & F-Puzzles:
Hope you enjoy the puzzle! Any feedback or comments welcome!
Solution code: Row 0 (outside numbers, left to right, no spaces)
on 17. July 2024, 18:22 by zzw
Great puzzle! I'd agree with philb though, definitely easier than 5* for me.
on 30. March 2024, 17:20 by mikepautov
l liked this puzzle!
on 2. March 2024, 18:23 by Myxo
Awesome puzzle, wow!
on 6. May 2023, 10:30 by Bankey
Had abandoned this one half-done on two earlier attempts, but finally got thru this time! Fantastic puzzle. Thanks, @ Xenonetix :)
on 12. December 2022, 21:02 by Vebby
Amazing minimalist construction that still lends itself to a smooth, interesting solve path. Thanks Xeno!
on 26. November 2022, 10:09 by ddx2407
Brilliant!
on 10. November 2022, 21:25 by philb
Lovely puzzle, but nowhere near a 5 for me.
on 7. November 2022, 23:33 by Nylimb
Very nice! Now I'll go watch CTC to see how Mark solved it so much faster than I did.
For a slightly easier puzzle with almost the same rules, see my Kropki'd X-sums sudoku: https://logic-masters.de/Raetselportal/Raetsel/zeigen.php?id=0004ND
on 23. September 2022, 01:07 by ough
Pretty incredible. Sums aren't my strong suit, but the arrangement of clues means it's fairly easy to see where to look next, which is good for an otherwise sticky puzzle.
on 13. September 2022, 16:10 by Niverio
Very nice!
on 7. September 2022, 21:28 by Fool on Hill
Great puzzle. Took ages, then suddenly spotted a key move after taking a break. Beautiful.
on 7. September 2022, 17:58 by DaniK
Absolutely amazing! I had a great time solving it. The puzzle is brutal and the construction is incredibly beautiful. Thank you very much!
on 6. September 2022, 23:46 by ONeill
Another one of your great puzzles. Thanks!
on 5. September 2022, 19:11 by marcmees
great construction. fun solve. thanks.
on 5. September 2022, 16:08 by Tilberg
Großartiges Rätsel! Great one!
on 5. September 2022, 05:04 by henrypijames
Looking forward to Mark/Simon being blown away by this miraculous construction.
on 4. September 2022, 23:47 by Wessel Strijkstra
Amazing puzzle. A nice challenge but smooth all the way. Lovely construction, thanks :D
*proceeds to steal buttons*
on 4. September 2022, 23:11 by fabianv
Another great construction! Had a lot of fun testing this.
on 4. September 2022, 23:05 by SKORP17
dürfen in den Randfeldern Zahlen doppelt auftreten? zb. 11-22-11
- Ja :) - X