Logic Masters Deutschland e.V.

Schrödinger's Killer

(Published on 16. December 2021, 05:20 by starwarigami)

Place the digits 0-9 in the grid so that every row, column, and 3x3 box contains every digit exactly once.
To enable this, there is a single Schrödinger cell in each box, containing a superposition of two different digits.
  • Every Schrödinger cell contains a unique pair of digits.
  • No Schrödinger cell can see another Schrödinger cell by Queen's Move (i.e. any distance horizontally, vertically or diagonally).
  • Digits in a cage may not repeat and must sum to the indicated total.
  • Schrödinger cells contribute the average of their two digits to the cage total.
ctc link

Solution code: All Schrödinger Cells (Top to bottom, low digit first) - 18 digits, no spaces


Solved by Elliott810, Statistica, SudokuExplorer, kolot, Lara Croft, marcmees, jwsinclair, jgreenfield, Ood, Gullie, polar, Pibonacci, tinounou, MagnusJosefsson, Mad-Tyas, Jesper, PixelPlucker, Steaky, ... ymhsbmbesitwf, rokokolito, harrison, miitz, OGRussHood, michaal94, Uhu, cdwg2000, Ximota, Crul, cfor, Just me, FzFeather, laky, ch1983, pkp, Wooden_Picks, dtoto, Paletron, OuyangZheng, lpq29743
Full list

Comments

on 15. January 2022, 08:24 by Ryx
I have to say, after watching Simon's solve, your Schrodinger concept was so much better than the three I have tried out. Really novel idea here.

Last changed on 11. January 2022, 16:17

on 11. January 2022, 16:15 by charlie_chaoscat
Great puzzle, really enjoyed!
Although I was expecting rule 1(unique pair) would play a more important role while solving.

on 10. January 2022, 01:31 by SimplePurpleFrog
A beautiful and hard- but still on the edge of approachable puzzle.
The logic needs a brain reset but becomes quite intuitive after a while. Lovely.

on 20. December 2021, 18:40 by bosjo
Great idea and a very pleasant solve. Who will take on the Heisenberg indeterminacy principle?

on 18. December 2021, 11:06 by kmoter
very entertaining, thanks

on 17. December 2021, 17:37 by PixelPlucker
Lovely idea!

on 17. December 2021, 13:10 by MagnusJosefsson
Wonderful puzzle, very enjoyable!

on 17. December 2021, 12:19 by Pibonacci
Gorgeous. Headache inducing without that being a bad thing.

on 17. December 2021, 08:16 by Gullie
What a great puzzle! Just had to throw everything I knew about killer cages out of the window :-). I did use the unique pair rule though, and it was a nice linear solve path for me, although quite hard. Great work!

on 17. December 2021, 02:18 by jgreenfield
A very nice puzzle, though I don't think I found the simplest route through it. Locating the Schrodinger cells was straightforward enough, but coming to terms with cage-total logic when there are zeroes included took me quite a bit of extra effort.

Last changed on 16. December 2021, 10:19

on 16. December 2021, 10:05 by Elliott810
This idea is sensational! It feels like facing a genius. After Simon Anthony stated several times, that there are not such things like Schrödinger cells in sudoku, this is a must for CTC. Thx for sharing:)

Difficulty:4
Rating:98 %
Solved:63 times
Observed:9 times
ID:0008JO

Puzzle variant Online solving tool

Enter solution

Solution code:

Login