Logic Masters Deutschland e.V.

Parity Fun 11

(Published on 18. January 2026, 12:36 by galium_odoratum)

This puzzle is probably a bit trickier compared to other puzzles in this series, but should be still quite approachable. Have fun!

Normal Sudoku rules apply.

German parity whispers: Adjacent digits on a green line must have the same parity (either both odd or even) and must differ by at least 5.

Negative X: No orthogonally adjacent digits can sum to 10.

Quadruple circles: A quadruple circle contains 4 digits which are always sorted in ascending order and which must appear somewhere in the 4 cells around the circle. For clarification, given the digits A < B < C < D, the order in a circle would look like this:
AB
CD

Fog: Some clues are hidden by the fog.

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

Solution code: Row 1


Solved by Matti64, anthe95, TJ , mcc, kublai, Deklok, Ragna, milxqueen, cmigas, gdc, ole-1995a, japanoise_breakfast, keenbowl, lutzreimer, Freegerator, lianarox, harwiltz, achim-t, illegel, Bobs, ... Deivi55, stramosk, AnebodaSlatorp, dzamie, bulguline, Dinxx, Piff, Thibaa, vrcngtrx_, Julianl, krytolandros, Yoica, Shmartus, matthew.v, chocobonight, macronate, sigge, Frutlop, Onyx, SFP, welgen
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Comments

on 19. January 2026, 10:51 by Exigus
Great fun and very well constructed. Thanks!

on 19. January 2026, 09:48 by Snookerfan
Very nice! I managed to overlook some obvious points for a long time, therefore it took me quite a while. Thanks!

on 18. January 2026, 23:34 by RedBarchetta
The first AHA came after ten minutes. Then it was a struggle for an hour until I got the second AHA. 2.5 hours - 4 star puzzle for me.

on 18. January 2026, 18:41 by harwiltz
Felt absolutely hopeless at first, but once you see a sign of life, it's glorious

on 18. January 2026, 17:54 by Freegerator
That was fun, thank you. Wbat a surprisingly strong rule!

on 18. January 2026, 14:56 by Deklok
Very nice puzzle! Thank you

Difficulty:3
Rating:95 %
Solved:85 times
Observed:0 times
ID:000R0P

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Solution code:

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