Parity Knights
(Published on 27. January 2026, 10:04 by Belamis)
Sudoku: Normal Sudoku rules apply.
Kropki: Digits in cells separated by a white dot are consecutive. Digits in cells separated by a black dot have a 1:2 ratio.
Parity: Along a red line, adjacent digits must alternate between odd and even.
Anti-Knight: Cells separated by a knight's move in chess cannot contain the same digit.
Solution code: Row 1
Comments
on 29. January 2026, 12:18 by matthew.v
Very fun solve!
on 28. January 2026, 09:04 by zembrost
fun, thanks!
on 28. January 2026, 01:10 by sparkymanu
Pretty tricky with all those layers but very fun and satisfying to solve!
Thank you for setting and sharing this
on 27. January 2026, 17:09 by Myfyr MJ
Very nice but took me 74 minutes. Maybe nearer 4 stars difficulty for me.
on 27. January 2026, 14:49 by fractalminding
@Ragna, sure not
@Belamis, thank you for fun sudoku. It was hard because antichess is unusual rule for me.
on 27. January 2026, 12:15 by Ragna
Just for sure: Is there a negative constraint in the Kropki-Rules?
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Reply: There is no negative constraint
on 27. January 2026, 11:00 by EmX68
Very nice but two star difficulty for me. Thanks for setting!
