Yin Yang killers
(Published on 22. March 2026, 21:07 by Killer Joe)
Hello.
Normal Sudoku rules apply.
Yin-Yang shading:
Color the grid using two colors such that:
Each color forms a single orthogonally connected region and no 2×2 block of cells is entirely one color.
The digits along each line sum to the same total.
Along each line, the Yin-Yang coloring separates odd and even digits; that is, all odd digits on a line are one color and all even digits are the other color.
Digits separated by a white dot are consecutive.
Have fun.
Solution code: Row 9, first 6 digits
Comments
on 6. April 2026, 16:58 by Mizuki
This was fun! Thänk you! This was my first 3*. But it wasn’t hard for me. Maybe this is more a 2* or i‘m getting better haha
on 28. March 2026, 15:37 by Djirt
Великолепное судоку, спасибо, что поделились!)
on 27. March 2026, 21:00 by psams
Enjoyed briefly thinking I had hopelessly broken the puzzle within the first minute or two.
on 25. March 2026, 04:27 by Dcs
Lovely interplay between the sudoku and ying yang. very approachable
on 24. March 2026, 18:15 by 5vishalb
Great puzzle. Very smooth logic!!
on 24. March 2026, 12:21 by polcat
Beautiful puzzle. Thank you!
on 24. March 2026, 01:04 by upinthesky
Very lovely! One of my favorite of the last many I’ve done.
on 23. March 2026, 22:55 by dzamie
Having the polarity not stay constant across the entire YY threw me a few times. Luckily, a bit of YY knowledge led me to figuring out the line sum very quickly, and after that was a pretty steady and fun solve. It's nice when the two constraints play off each other, rather than filling most of the YY out and then going back for sums, or vice versa.
on 23. March 2026, 18:56 by Exigus
Impressive construction, had a great time solving. Thanks!
on 23. March 2026, 12:35 by WeakSolver
Wonderful puzzle. Great balance between shading, math and sudoku. Outstanding work.
on 23. March 2026, 12:00 by bboom
Very nice flow, some cool logic in there that makes the solve pretty quick if you spot it, but also very satisfying.
on 23. March 2026, 09:45 by Snookerfan
Beautiful puzzle! Important for future solvers: the odd/even coloring can change per line. The rules are clear about that, but it needs careful reading. Thanks!
on 23. March 2026, 04:08 by Allagem
Great puzzle! This may be odd to say, but I really like the yin-yang pattern that results here - it feels "rare" :)
on 23. March 2026, 00:57 by DanishDynamite
Very nice!
