Logic Masters Deutschland e.V.

Origin of Symmetry

(Published on 25. April 2023, 12:34 by Abdul the Killer)

SHADING: Shade some cells so that in the finished puzzle cells containing values exactly one greater than an immediate neighbour (diagonally or orthogonally) within their box are shaded (and otherwise unshaded).

The shading pattern must have a left-right symmetry in the grid.

ANTI-KNIGHT: Cells a knight's move apart cannot contain the same digit.

Otherwise standard Sudoku rules apply.

Play on CTC

Solution code: row 2 col 6

Last changed on -
Solved by Matti64, zuzanina, Paquet Voleur, Lozzo, lars, michalil, Tamuha, gutman, Linnce, SKORP17, arteful, nmmc123, Raistlen, Crul, sacklunch, tobymgk, Dermerlin, nunc, mutex, GabePuzzles, pjhiatt, jguer, ... iyork, vmirandaa, annnz, galium_odoratum, luisdias412, pms_headache, atomvic, chanelaw, charge728, Leoninus, ChinStrap, forsen, liushong, Shuhua Milk, Luaryo, timww572, mjozska1985, asii
Full list

Comments

on 22. June 2024, 23:10 by Shuhua Milk
Nice!

Last changed on 1. July 2023, 10:43

on 30. June 2023, 18:52 by Starstorm
Took a few restarts as I was running into paradoxes, but it crumbled in the end! Nice puzzle
--Thanks for the kind comment. ---ATK

on 26. April 2023, 19:35 by Abdul the Killer
Thanks @Snookerfan, @tobymgk, @Tamuha for the kind comments.

on 26. April 2023, 19:24 by Snookerfan
Very nice! Hard scanning, but great result, thank you

on 25. April 2023, 20:05 by tobymgk
Great as always with these puzzles!! I had a couple false starts but then was able to work it out - I think I was getting mixed up on the direction the symmetry worked in

on 25. April 2023, 16:41 by Tamuha
Nice Puzzle with great flow and an interesting ruleset. Thank you.

Difficulty:2
Rating:93 %
Solved:76 times
Observed:10 times
ID:000DOU
Puzzle variant Online solving tool Shading puzzle
Sudoku, Anti-Knight (Variant)

Enter solution

Solution code:

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