King's Cross
Rules:
1. Standard: Normal sudoku rules apply.
2. Anti-king: Cells separated by a king's move in chess cannot contain the same digit.
Solution code: Columns 1 and 4 (18 digits, no spaces or commas)
on 1. November 2021, 00:07 by uvo_mod
Label ergänzt.
on 31. October 2021, 15:12 by gbrljt
First time ever trying a king's move constraint. Loved it! There was a (uvqqra fvatyr) that took me 20 minutes to spot, which means I need more sleep.
on 30. October 2021, 14:41 by Jay Dyer
Fixed the title in the description.