Color Wheel
(Published on 7. January 2026, 14:04 by idanz)
- normal Sudoku: Put the digits 1-9 once in each row, column and box.
- Cells separated by a chess knight's move contain different digits.
- Digits on a solid gray square are even.
- Box borders divide blue region sum lines into segments with equal sums. The different shades of blue are to avoid ambiguity.
Play
Solution code: Row 9
Comments
on 5. June 2026, 22:56 by Innocuous
Fantastic puzzle!
on 10. January 2026, 17:48 by johnreid
Very nice puzzle, thanks for setting it!
on 9. January 2026, 08:38 by CorpJigsQuand
Very beautiful! Not too straight forward. Thank you
on 8. January 2026, 13:55 by galium_odoratum
Wonderful debut, this was very fun to solve!
on 7. January 2026, 21:06 by dzamie
"I see the wheel, but why *color* wheel?" I ask myself, as I continue to use the coloring tool in sudokupad.
That was pretty tricky! I got turned around once, probably because I'm used to these puzzles also having anti-king rather than just -knight. A lot of fun, though, especially since the colors and digits wound up reinforcing each other, rather than just solving the colors and then filling in the numbers after.
