Antiknight: Any two cells separated by a knight's move in chess cannot contain the same digit.
XV: Digits separated by an X sum to 10, those separated by a V sum to 5. All Xs and Vs are given.
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 1
on 10. July 2026, 23:02 by zhall12570
Very difficult but very clever. Wow. 5 star doffficulty for me
on 2. July 2026, 15:25 by Jrosas
A very beautiful puzzle that has been terribly mistreated by LM ratings
on 29. June 2026, 20:53 by snuuba
Felt easier than 4 stars until it wasn’t.
Many thanks for long lasting entertainment.