Σ
(Published on 27. February 2026, 08:00 by Kaktuslav)
Rules: Normal sudoku rules apply. Each pink line is a renban: it contains a set of consecutive digits (in any order). No two pink lines have the same digit sum.
Solution code: Row 5
Comments
on 24. March 2026, 15:20 by superkinkel
Brilliant, only downside: I needed Excel to get an overview of the possible sums ...
on 8. March 2026, 21:03 by Djirt
Спасибо, судоку великолепное!
on 5. March 2026, 23:47 by greebug
Great construction!
on 4. March 2026, 13:42 by baku
What did I miss to this not to be 5 stars? Great puzzle!
on 28. February 2026, 00:46 by johnreid
Great puzzle, thanks!
on 27. February 2026, 22:56 by superkinkel
Brilliant, only downside: I needed Excel to get an overview of the possible sums ...
on 27. February 2026, 20:07 by Fool on Hill
This is one of my favourite ever puzzles - at least the way I solved it. Not too hard when you think about it right: two things stand out - there is a remarkable break of high/low symmetry, and the consistent flow of deductions which all require a little thought right through the solve till nearly the end. A real gem of a puzzle, right in the sweet spot.
on 27. February 2026, 17:32 by pep9
Great and fun puzzle!
on 27. February 2026, 15:18 by VitP
the sudoku is easy enough, but the amount of preparation, done on paper separately, to reduce the almost 30 sets to EXACTLY 18 (serendipitously), puts this into level 3
on 27. February 2026, 14:41 by Ragna
What a wonderful puzzle! That was FUN. Thank you. :-)
on 27. February 2026, 14:01 by Franjo
Thank you very much for creating and sharing another brilliant puzzle. 3* for me, as I needed some sums-preparation…
on 27. February 2026, 10:11 by FireTruckFuel
Ka Chow! Like a good book, I could not put it down. I felt like I spent no time on it at all. Certainly no time wasted.
on 27. February 2026, 09:55 by mihel111
Neat and approachable. Very well done. 2,5 stars diff I would say.
