2⊗26
(Published on 4. February 2026, 08:06 by Kaktuslav)
Rules: Place the digits 1–6 once each in every row, column, and region. The sum of the digits on each main diagonal equals 26.
Solution code: Row 1
Comments
on 12. February 2026, 20:14 by dzamie
Huh, pretty tricky. I had to redo parts of my coloring to find a set of starting cells to work with.
on 11. February 2026, 21:07 by MiguelMunoz
Very elegant!
on 11. February 2026, 07:13 by CarnacTheMagnificent
Admittedly had a tough battle with this puzzle. I decided to use letters in one region and was able to populate the rest of the puzzle. Then used the 26 sum constraint to finish. Thanks for the puzzle.
on 10. February 2026, 13:40 by belarusian644
Thanks! That's a great application of colouring. Definitely 2 stars, as noted before me
on 10. February 2026, 05:37 by silent_rob
Lovely puzzle - thanks very much!
on 10. February 2026, 04:32 by PancakePie
Very beautiful, very fun! Thank you!
on 9. February 2026, 17:07 by Kattorzeh
For me 2 stars, short and interesing. Thanks!
on 6. February 2026, 03:47 by amchap
Lovely. Thanks.
on 5. February 2026, 13:19 by Franjo
Incredibly good exercise in coloring! Thank you very much for creating and sharing this beautiful puzzle.
on 5. February 2026, 11:01 by Djirt
Спасибо, отличное судоку!)
on 5. February 2026, 05:20 by macintux
Definitely feel like this is a 2 star; certainly it would be quite a challenge for a beginner.
Great puzzle, thanks.
on 4. February 2026, 19:45 by Decapod
That was beautiful! Quick, but I sill felt like I'd been clever during the solve.
on 4. February 2026, 17:52 by Myxo
Lovely!
on 4. February 2026, 15:52 by sfield
I like the way the 26 worked at the end to disambiguate more things than I would have expected.
on 4. February 2026, 15:23 by sujoyku
This solves like magic. Thank you, Kaktuslav!
on 4. February 2026, 13:43 by marcmees
Little beauty. Thanks
on 4. February 2026, 12:05 by Snaques
This was really fun and interesting for a 6x6 puzzle. Due to its size it didn't take too long, but I do think there was some logic that could warrant 2* difficulty.
on 4. February 2026, 11:37 by GeorgeTheToad2
Beautiful.
on 4. February 2026, 11:17 by SennyK
Wonderful coloring puzzle! Thank you :-)
on 4. February 2026, 10:22 by Titus Adduxas
I do like nice colouring puzzle.
on 4. February 2026, 08:52 by raveenmallawa
very satisfying
on 4. February 2026, 08:32 by vidarino
Great little snack for my morning coffee! Thanks! :)
