Even Parity Sensors
(Published on 8. May 2026, 16:41 by BlueToast001)
Normal sudoku rules apply. Put the Digits 1 - 9 in every row, column and 3x3 box.
White Kropki: Digits separated by a white dot are consecutive. Not all possible dots are shown.
Black Kropki: Digits separated by a black dot indicate one digit is double the other. Not all possible dots are shown.
Sensors: Red circles act as sensors: each number in a red circle equals the number of EVEN digits a king’s move away within the same 3×3 box, including itself.
For example, if a circled cell sits in a position where its king’s move within its box covers 6 cells containing the digits 1, 2, 3, 4, 6, and 9, then the circle would be 3, since 2, 4, and 6 are even.
Those are the rules! Good luck!
If you enjoyed this, click the picture below to take you to my ODD version of this puzzle (It's a little bit harder)!
Solution code: Enter the digits from row 2 (from left to right) - 9 digits total.
Comments
on 11. May 2026, 08:06 by greemi01
Very nice indeed!
on 9. May 2026, 21:57 by nunc
That was fun (although I needed some time to see the obvious:-). Cool idea, beautiful setting!
on 9. May 2026, 12:00 by Geoloco
very nice puzzle, I like the parity sensor concept (didnt know it yet).
-Thank you! I hadn't seen it before either. Had seen sensors and had seen parity, thought, why not combine the 2!!!
-BlueToast001
on 8. May 2026, 23:29 by pmays123
Super fun puzzle. Thanks!
-You are very welcome! I'm glad you enjoyed :)
-BlueToast001
on 8. May 2026, 19:48 by galium_odoratum
Fun puzzle, I love parity rule sets, thank you for setting!
-Thank you for taking the time to solve :)
-BlueToast001
