Logic Masters Deutschland e.V.

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, ... roavin, soroush, Bobbobert, Ryzen, karen_birgitta, Dentones, tome_coelho, ZornsLemon, Bjd, teuthida, gynu, dennischen, Sewerin, Felis_Timon, valle1124, karlmortenlunna, apwelho, PsychedelicCreature
Full list

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, 11:37

on 21. January 2022, 11:37 by abed hawila
Lovely puzzle, the lines interact perfectly with both killer cages and kropki dots. Very clever construction!

Difficulty:4
Rating:96 %
Solved:49 times
Observed:13 times
ID:0008VE

Variant combination Online solving tool

Enter solution

Solution code:

Login