Anti-double-knight sudoku
(Published on 5. January 2020, 22:13 by Shinya)
E.g. a cell a knight's move from a 1 must not contain a 2, a night's move from a 2 no 1 or 4, a knight's move from a 3 no 6 etc.
Solution code: Row 2, column 2
Comments
on 17. September 2020, 17:01 by cdwg2000
Video problem solving from Bilibili website: https://b23.tv/8WX5cm
on 14. January 2020, 14:58 by cdwg2000
@Shinya
制作了解题过程，共21张图片，已通过云端存储分享，如果有任何不妥，请及时通知我进行删除。
on 9. January 2020, 14:26 by Rollo
Ich konnte ziemlich viele Ziffern mit Logik ermitteln, habe dann einmal geraten und Glück gehabt. Auf jeden Fall ein ganz tolles Rätsel!
on 7. January 2020, 17:09 by Dandelo
@flaemmchen: Da bist du nicht die erste. Und auch sicher nicht die letzte...
on 7. January 2020, 15:43 by flaemmchen
@Dandelo: Ja 3-6 ist einer Stelle falsch, obwohl ich da zig Mal draufgeschaut hab'. Manchmal ist man halt blind ... Danke :-))
on 7. January 2020, 14:31 by Dandelo
@flaemmchen: Ist bis auf die 2-Potenzen falsch, vermutlich ist irgendwo doch eine verbotene Beziehung drin (3-6 meistens)
on 6. January 2020, 12:39 by dm_litv
Fantastic, unbelievable puzzle!
Congratulations to the author for such an impressive debut!
on 6. January 2020, 12:36 by Shinya
@Dandelo
Thanks for the hint, I'll add a hidden comment this evening, when I'm back from work, and have access to my solution path.
on 6. January 2020, 12:19 by Dandelo
@shinya: If you have a solving path, you also can share it via a hidden comment. Then only those can read it who already have solved.
@both: You may write questions to the author in a hidden comment. Then the author can edit this comment attaching the answer. After that only the author and you can read it, and those of course who already have solved
on 6. January 2020, 12:05 by cdwg2000
If you have a good problem solving idea, can you give me a E-mail？ My email is 2088426@qq.com, thank you very much!
on 6. January 2020, 12:05 by Tahg
I have, what appears to be a correct solution, except it's apparently not. I can't figure out what's wrong though.
EDIT Found a bad knight's move, which must mean something I thought had to be correct near the very beginning was probably wrong because it seemed logical after that.
on 6. January 2020, 11:48 by Shinya
@cdwg2000
Just wanted to give you a hint, and just saw you solved it. Apologies for not being faster :-(
on 6. January 2020, 11:41 by cdwg2000
Crazy try and error.
on 6. January 2020, 09:27 by Dandelo
Beautiful and surprising. In the beginning I couldn't believe it was unique, but ...
In the end I needed a little bit T&E, but I think I know, what I've missed.
on 6. January 2020, 08:00 by cdwg2000
This question is very difficult. If possible, can you provide clues to the problem? Thank you!
on 6. January 2020, 07:57 by cdwg2000
This question is very difficult. If possible, can you provide clues to the problem? Thank you!
on 6. January 2020, 07:35 by Shinya
Well, I'm new in here (it's my first ever sudoku), so I do not know by what standards you would call a solution logical.
But there is only one solution, and you can step by step exclude candidates from cells to identify the correct numbers.
on 6. January 2020, 05:21 by cdwg2000
Does this Sudoku have a logical solution?
