For Humans Only
(Published on 8. August 2026, 14:00 by addie)
Antiknight and Antiking: Any two cells separated by a knight's or king’s move in chess cannot contain the same digit.
Kropki Dots: Digits separated by a black dot have a 2:1 ratio. Digits separated by a white dot are consecutive. Not all dots are necessarily given.
Solution code: Row 9
Comments
on 13. August 2026, 19:01 by rgggggggg
It took me over an hour (61:35 min) but very very nice sudoku
on 12. August 2026, 13:59 by Exigus
Thanks to some secrets <5 min solve time but a very nice setup. Thanks!
on 11. August 2026, 06:17 by Renbanter
Is the title "For Humans Only" communicating that you don't want people to see the rules and immediately assume toroidal looping? After the break-in, assuming looping made things much quicker, but I don't know how to *prove* that it stems from the antiking and antiknight constraints--I just always seem to find that it results.
on 11. August 2026, 03:56 by Renbanter
Is the title "For Humans Only" communicating that you don't want people to see the rules and immediately assume toroidal looping? After the break-in, assuming looping made things much quicker, but I don't know how to *prove* that it stems from the antiking and antiknight constraints--I just always seem to find that it results.
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Author's note: Thanks for your comment and question! I named it that because for some reason the website I use to create and playtest my puzzles couldn't solve this one with its algorithm and I thought that was interesting! I explain it more in the tutorial video if you're interested. As for looping, I don't mind if people use it or not. In my opinion, however someone enjoys solving is the right way for them to do it!
on 9. August 2026, 17:38 by EYEONYSUS
REALLY enjoyed this one - very satisfying interaction of constraints. Thanks Addie :>
on 9. August 2026, 15:53 by Snookerfan
Fun puzzle and nice setup! Before trying, you should know the secrets of this combination of rules, which are probably explained in the tutorial. Thanks
on 9. August 2026, 13:21 by Peteronium
Thanks for the tutorial. And the puzzle :)
on 9. August 2026, 00:39 by The Pi Guy
Very clever. A bit tricky in places and definitely harder than 2 stars! Liked the step that determined the 2/8s and the way the 5s worked.
on 8. August 2026, 20:19 by keenbowl
Nice puzzle, thank you for setting and sharing!
on 8. August 2026, 20:14 by Big Tiger
23 solves, 2 stars ... and I'm stumped. Ah, well.
