Parity Clockwork
(Published on 20. January 2022, 20:24 by Playmaker6174)
The following is a puzzle that utilizes the power of parity, I made this one quite a long time ago and now I decide to share it here, I hope you enjoy!
Rules:
- Normal Sudoku rules apply: every row, column and 3x3 box contains digits from 1 to 9 each once.
- Digits within a cage don't repeat and must sum to the small number written in the top left corner of that cage.
- Digits along a gray line must have the same parity, i.e. all odd digits or all even digits, and they form a set of non-repeating consecutive digits in terms of their respective parity in any order. In this case, parity of each line has to be deduced.
- A black dot implies the 1:2 ratio relationship between two cells, a white dot implies the consecutive relationship between two cells. Not all dots are given.
Puzzle:
F-puzzle link
Sudokulab (alt. link)
Penpa plus (alt. link)
CTC app (alt. link)
Good luck and have fun solving!
Solution code: Row 7 (left to right) and column 2 (downwards), 18 digits long with no space
Last changed on on 20. January 2022, 20:25
Solved by SKORP17, tallcat, OutOfMyMindBRB, ScatterBrain, mathpesto, Elliott810, Vebby, abed hawila, wilsig, krangune, tinounou, Jesper, ManuH, zlotnleo, Niverio, 0123coolkid, askel083, KNT, BHUNTER47, cegie, ... Piatato, cdwg2000, OGRussHood, Bankey, AvonD, lerroyy, roavin, soroush, Bobbobert, Ryzen, karen_birgitta, Dentones, tome_coelho, ZornsLemon, Bjd, teuthida, gynu, dennischen, Sewerin, Felis_Timon
Comments
on 31. May 2022, 21:52 by Bankey
Had abandoned this half-done months ago. Tried afresh today, and finally the aha!! Very clever setting, and very enjoyable to solve. Thanks, @ Playmaker6174 :) (that Kaprekar Constant is a fantastic discovery!)
on 16. February 2022, 03:47 by Piatato
What a fantastic solvepath, with such great tricks throughout! :-D
on 24. January 2022, 07:58 by Playmaker6174
Thank you Abed and Jesper! I'm glad that you enjoyed the interesting works in this one :)
on 21. January 2022, 17:10 by Jesper
Very nice, the killer cages and the parity logic are combined really well :)
Last changed on 21. January 2022, 11:37on 21. January 2022, 11:37 by abed hawila
Lovely puzzle, the lines interact perfectly with both killer cages and kropki dots. Very clever construction!