Logic Masters Deutschland e.V.

Odd Parity Sensors

(Published on 12. May 2026, 17:04 by BlueToast001)

Odd Parity Sensors 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.

Thermometer: Digits on thermometers increase from the bulb to the tip.

Sensors: Red circles act as sensors: each number in a red circle equals the number of ODD 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, 5, and 9, then the circle would be 4, since 1, 3, 5, and 9 are odd.

Those are the rules! Good luck!

Play this puzzle on SudokuPad!

If you enjoyed this, click the picture below to take you to my EVEN version of this puzzle (It's a little bit easier)!

Solution code: Enter digits from row 6 (from left to right) - 9 digits total.

Last changed on on 13. May 2026, 05:38

Solved by Lizzy01, Piff, Zzzzz..., Big Tiger, balpha, GorgeousNicko, SKORP17, dickey, lianarox, Sotiris6V, damyan_rm, iEtsh, Nagesh, firespire, Saskia11, Carolin, SPOU1, kaiserbykaiser, Niffyjiffy, geronimo92, kisukeA, Ph1nt, devopk223, strawburster, Jastucreudo, Elizy, Caswell, Crul, Rjw78, edwardio0, totalQ, ebulku, mistermean, yuripuppies, kangaroo
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Comments

on 10. June 2026, 17:41 by yuripuppies
Lovely puzzle! I actually found it easier than the even puzzle, but maybe that's just because I am more used to the mechanic than yesterday lol

on 15. May 2026, 18:50 by geronimo92
Completely agree with Sotiris6V, two stars too and it's not harder than the even variant at all !! I solved the even one in 19 minutes and this one in 14 !

Last changed on 13. May 2026, 05:30

on 13. May 2026, 02:33 by Sotiris6V
Very nice puzzle with some nice deductions, but definitely not a 3*.

-Thank you for taking the time to solve! I'm crap at setting the difficulties. I done a puzzle like this using even parity instead of odd and it was 2 stars, this odd one is harder, so assumed 3 stars would fit. I also done a good amount of testing and thought it was ok to be 3. Do you think it was easier than 3 stars?
-BlueToast001

on 12. May 2026, 18:12 by balpha
This was fun, thank you for setting!

Difficulty:2
Rating:85 %
Solved:35 times
Observed:0 times
ID:000SRJ

Variant combination New Shading puzzle

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Solution code:

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