Blue about
(Published on 13. July 2026, 20:37 by gwai77)
Normal Sudoku rules apply:Each row, column, and 3x3 box must contain the numbers 1-9 once.
Region sum lines:For each line, digits on the line have an equal sum N within each box it passes through.
Quadruples:Every digit in a circle has to be assigned to one of the surrounding cells.
White dots:Two adjacent cells are separated by a white dot, the difference between their values must be exactly 1.
Click the image to solve it on Sudokupad
Solution code: row 7 from left to right
Comments
on 1. August 2026, 00:06 by Ceramics-Quintet6
Found it easier than usual
on 15. July 2026, 12:48 by matthew.v
Fun puzzle!
on 15. July 2026, 03:38 by Sushila
Very nice, thanks!
on 14. July 2026, 21:15 by SanFranSam
A doable 2* for me.
on 13. July 2026, 23:22 by Inge
Fun puzzle, thank you
on 13. July 2026, 22:28 by LeaVulpina
That was absolutely lovely!
on 13. July 2026, 21:59 by sujoyku
I did not find it that easy, but had a lot of fun figuring things out. Thank you, gwai77!
