Rules:
Normal sudoku rules apply: Place the digits 1 to 9 once each in every row, column and 3×3 box.
Activated whispers: Adjacent digits on a coloured line must have a difference equal or greater than the digit in the circle of the same colour.
All digits in circles are different.
Solution code: Row 4 (left to right, no spaces)
on 15. July 2026, 07:58 by PjoeterBliep
Change link to color blind friendly. Clicking image still gives the original link.
on 11. July 2026, 03:03 by jennyaa
A colorblind-friendly mode where all the circles and lines are labeled with letters would be really appreciated. I didn't think I was colorblind, but I have trouble telling some of those colors apart, so maybe I am...
on 18. July 2025, 17:31 by PjoeterBliep
Clarify rules: "adjacent" digits on a line.
on 10. May 2025, 17:39 by Adrian71
Fun puzzle! I enjoyed it a lot :)
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