Nonconsecutive: Any two orthogonally adjacent cells cannot contain consecutive digits.
Antiknight and Antiking: Any two cells separated by a knight's or king’s move in chess cannot contain the same digit.
XV: Cells separated by a V sum to 5; cells separated by an X sum to 10. Not all Vs and Xs are necessarily given.
Solution code: Row 2
on 5. June 2026, 12:48 by matthew.v
I struggled a bit with the break-in, but after that it was smooth sailing. Thanks for the lovely puzzle!
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