Parity Fun 8
(Published on 11. January 2026, 09:34 by galium_odoratum)
This variation allowed surprisingly interesting deductions. It might be a bit harder than the average puzzle on this series, but hopefully still approachable. Have fun!
Normal Sudoku rules apply.
Even parity sandwich sums: Blue digits outside the grid indicate the sum of the digits sandwiched between the rightmost and leftmost even digit of the row/topmost and bottommost even digit of the column.
Odd parity sandwich sums: Orange digits outside the grid indicate the sum of the digits sandwiched between the rightmost and leftmost odd digit of the row/topmost and bottommost odd digit of the column.
Ambigous sandwich sums: Black digits outside need to be determined by the solver whether they are even or odd parity sandwich sums.
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
Normal Sudoku rules apply.
Even parity sandwich sums: Blue digits outside the grid indicate the sum of the digits sandwiched between the rightmost and leftmost even digit of the row/topmost and bottommost even digit of the column.
Odd parity sandwich sums: Orange digits outside the grid indicate the sum of the digits sandwiched between the rightmost and leftmost odd digit of the row/topmost and bottommost odd digit of the column.
Ambigous sandwich sums: Black digits outside need to be determined by the solver whether they are even or odd parity sandwich sums.
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 7
Last changed on on 7. February 2026, 13:11
Solved by SirShyLordy, marcmees, sedici, SKORP17, illegel, strangelyinsane, lianarox, paranoid
Comments
on 7. February 2026, 13:11 by galium_odoratum
updated link list
on 23. January 2026, 21:18 by VitP
level 3 is fair, "approachable" it's not, not by any meaningful use of the term
on 14. January 2026, 22:21 by galium_odoratum
typo
on 11. January 2026, 14:24 by marcmees
Nice idea. Thanks
on 11. January 2026, 13:21 by galium_odoratum
Corrected SudokuPad link & solution code
Last changed on 11. January 2026, 13:23
on 11. January 2026, 11:09 by SirShyLordy
The SudokuPad link has the wrong sandwich sum on column 7, and the post here has the wrong one on row 7.
-Sorry I got the versions confused, thank you for pointing this out :) ~galium
