Parity Fun 11
(Published on 18. January 2026, 12:36 by galium_odoratum)
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
Comments
on 29. January 2026, 11:12 by Tws
After getting the three pairs it took long time and a lot of colours to solve the first number. Hard one!
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
