Parity Fun 7
(Published on 10. January 2026, 12:58 by galium_odoratum)
This ruleset has probably even more potential, but I wanted to keep it a bit easier this time (probably 1.5 difficulty once you understand whats going on). Have fun!
Normal Sudoku rules apply.
Region parity lines: The blue lines are separated into segments by the box borders. For each individual line, all segment sums (=sum of all digits on a segment) have the same parity (odd/even). The crossing lines between box 6 and 9 are two distinct lines (also emphasized by slightly different colour when opened in Sudokupad).
White Kropki dots: Digits separated by a white dot must be consecutive.
Box matches: There must be exactly 6 occasions where a digit matches its box number and its position in its box at the same time (e.g. a 6 in r5c9 would match these criteria).
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.
Region parity lines: The blue lines are separated into segments by the box borders. For each individual line, all segment sums (=sum of all digits on a segment) have the same parity (odd/even). The crossing lines between box 6 and 9 are two distinct lines (also emphasized by slightly different colour when opened in Sudokupad).
White Kropki dots: Digits separated by a white dot must be consecutive.
Box matches: There must be exactly 6 occasions where a digit matches its box number and its position in its box at the same time (e.g. a 6 in r5c9 would match these criteria).
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 4
Last changed on on 7. February 2026, 13:10
Solved by annaeinachin, gdc, SKORP17, chocobonight, MeanoPenquino, zhangjinyang, KelleyCook, illegel, Gcach, Tws, scarfdoku, xie2yue, jsxft, paranoid
Comments
on 7. February 2026, 13:10 by galium_odoratum
updated puzzle series links
on 19. January 2026, 16:40 by Tws
A Great Puzzle ! This ruleset is clever! Thanks for sharing your ideas of parity
on 10. January 2026, 13:40 by annaeinachin
This puzzle was such a pleasure. It was fun colouring almost all the way and how everything resolved at the end. I enjoyed the idea with the box matches especially.
Thank you for setting!
