Logic Masters Deutschland e.V.

Anti-Diagonal

(Published on 16. July 2025, 13:02 by vitaminz)

This is part of a series exploring the idea of the strange rule in the puzzle. The break-in here is exactly the same as that in "Pro-Diagonal" but this removes the anti-knight constraint which drastically changes the rest.

1. Parity Parity
2. Pro-Diagonal

If you would like to play a version with one more given digit that smooths out the main solve a bit, you can find that here.
Please leave a comment if you enjoy it!

Play on SudokuPad
RULES:

Latin Square rules apply (place the digits 1 to 9 once each in every row and column).

Parity Parity: The grid is covered in a checkerboard pattern of yellow and blue cells. Each digit appears in one of the colors exactly as many times as its value. For example, 7 will appear either exactly seven times in blue or exactly seven times in yellow.

Anti-Diagonal (Negative): Digits may not repeat along any negative diagonal (those going from the top left to the bottom right).

Solution code: Column 4

Last changed on -

Solved by SKORP17, Firmus, Exigus, Kazeyoubi, Maximus, Elliott810, blueberrypug, lmdemasi, fkib, steperlich, paranoid, Dentones, cygne, kagiso, QuiltyAsCharged, awwkaw
Full list

Comments

on 7. August 2025, 12:29 by awwkaw
These constraints really work together in a fun way. Nice puzzle 8-)

on 17. July 2025, 10:03 by Elliott810
Brilliant construction! Thank you:)

on 16. July 2025, 20:24 by Exigus
With lessons from the previous ones it went relatively smooth, but i admit to having conflict checker on because the scanning was quite hard. Cool series. Thanks!

Difficulty:4
Rating:80 %
Solved:16 times
Observed:3 times
ID:000O8E

Enter solution

Solution code:

Login