Logic Masters Deutschland e.V.

Parity Party 3

(Published on 28. December 2025, 15:42 by galium_odoratum)

Normal Sudoku rules apply.

Grey squares: Grey squares contain even digits. Each such digit indicates how many even digits appear in the surrounding (up to) eight cells, including the cell itself.

Grey circles: Grey circles contain odd digits. Each such digit indicates how many odd digits appear in the surrounding (up to) eight cells, including the cell itself.

All possible squares and circles are given.

Inequality: Inequality signs between two cells point towards the smaller digit.

Play on SudokuPad



Try out the others of this series:
Parity Fun 1
Parity Fun 2
Parity Fun 3
Parity Fun 4
Parity Fun 5
Parity Fun 6
Parity Fun 7
Parity Fun 8
Parity Fun 9
Parity Fun 10
Parity Fun 11
Parity Fun 12
Parity Fun 13
Parity Fun 14
Parity Fun 15
Parity Fun 16
Parity Fun 17
Parity Fun 18
Parity Fun 19
Parity Fun 20

Solution code: Row 5

Last changed on on 7. February 2026, 13:07

Solved by Mathemagier, FireTruckFuel, Rearden, edwardio0, WarriorKitten, gdc, pepe74287, annaeinachin, HeyItsErin, Kirk Fogg, BorisTheSnake, sparkymanu, micjo, cmigas, SKORP17, weiken, Prince Joffrey, cornuto, ... ItchySwan, KelleyCook, timww572, Uhu, Photyne, Zibl, zhangjinyang, muule, vtable, FibonacciCascade, paranoid, farodin64, scarfdoku, olegavibe, Fenn, lazlofruvous, jorningekr, Titus Adduxas
Full list

Comments

on 7. February 2026, 13:07 by galium_odoratum
updated puzzle series links

Last changed on 6. February 2026, 05:04

on 29. January 2026, 15:06 by Titus Adduxas
Very nice puzzle, especially when you remember the negative constraint!

on 3. January 2026, 19:39 by marajade
I found this to be (at least for me) the easiest of your four delightful Parity Party puzzles, but also probably my favorite so far! It was a very smooth solve and I particularly enjoyed the coloring process on this one.

on 31. December 2025, 09:58 by Tws
Excellent puzzle! Thank you for sharing! No need for negative constraint.

on 29. December 2025, 11:49 by Killer-Ly
After solving I read about the negative constraint. Had completely forgotten about it. Still very solvable. Thank you!

on 29. December 2025, 04:13 by Karitsu
Beautiful.

Last changed on 29. December 2025, 01:14

on 29. December 2025, 01:13 by rojspencer
Totally forgot about the negative constraint and still managed to solve it. ¯_(ツ)_/¯
Enjoyed the logic.

on 29. December 2025, 00:07 by SanFranSam
I thought I had ended up with a deadly pattern until i looked at the comments and got my clue as to what to look for.

on 28. December 2025, 19:48 by sparkymanu
Very nice and fun to resolve, thank you for submitting!

on 28. December 2025, 19:37 by BorisTheSnake
Oh yeah! Loved this one.. very nice logic throughout! Thank you :)

on 28. December 2025, 18:37 by HeyItsErin
Really fun puzzle! The negative constraint came in clutch a couple times early on.

on 28. December 2025, 18:36 by annaeinachin
Very nice puzzle with a great flow. Thank you for setting!

Difficulty:2
Rating:89 %
Solved:82 times
Observed:0 times
ID:000QQN

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Solution code:

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