9-steps Tutorial: Anti-knight
(Published on 28. March 2023, 15:56 by Azireo)
9-steps Tutorial: Anti-knight
Here is a tutorial sudoku teaching the anti-knight constraint and aimed at first-timers. It is accessible, though not the easiest puzzle.
This time, the steps are not so clear than in the previous puzzles of the series, and it felt much harder to set. Hopefully, it still showcase some common anti-knight logic.
Rules: Normal sudoku rules. Digits must not repeat in cells that are a chess knight's move apart.
Link: CtC app
Last puzzle in the serie: XV
Solution code: First box (top left), row by row, from left to right, top to bottom,
Comments
on 1. October 2023, 03:50 by cascadeshiker
Very nice. Thanks for this. I particularly like that I had to look at cells that would be excluded by either candidate in another box.
on 1. April 2023, 12:50 by ViKingPrime
I adore the tutorial series, so good for introducing people to variant sudoku. Keep up the great work!
on 31. March 2023, 00:27 by wenchang
https://youtu.be/K9zAjUj_gxU
Beautiful tutorial! Spoiler alert!
on 28. March 2023, 19:05 by Tingo
This is another great entry into your tutorial series. Very nicely done!
on 28. March 2023, 18:12 by TomMalufe
It took me an hour to complete, but that's about average for me, a beginner. I found the puzzle very approachable. Thanks!
--
Azireo: Great! Hope you enjoyed the ride! :)
on 28. March 2023, 16:34 by Azireo
re-changed solution description
on 28. March 2023, 16:33 by Azireo
Change code description
on 28. March 2023, 16:27 by Jlrice2
Code should be first box (row 1-3). I read the instructions as columns at first.
on 28. March 2023, 16:08 by jalebc
code?
