Antiknight and Antiking: Any two cells separated by a knight's or king’s move in chess cannot contain the same digit.
Nonconsecutive: Any two orthogonally adjacent cells cannot contain consecutive digits.
Ratio Kropki Dots: Digits separated by a black dot have a 2:1 ratio. Not all dots are necessarily given.
Solution code: Row 1
today, 00:02 by itsid
indeed a very nice puzzle, thank you
on 17. July 2026, 10:33 by superkinkel
Beautiful setup. Difficulty-wise, I think it’s rather two stars if you have any experience with the constraints.
on 17. July 2026, 01:54 by Sushila
Very nice!
on 17. July 2026, 01:33 by BigHead
Wonderful puzzle, thank you!
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