Never two apart
- Negative constraint
The brief
Normal sudoku rules apply. Orthogonally adjacent digits never differ by exactly 2, e.g. a 3 is never orthogonally adjacent to either 1 or 5.
by sujoyku · Difficulty 1 of 5 by sujoyku
Normal sudoku rules apply. Orthogonally adjacent digits never differ by exactly 2, e.g. a 3 is never orthogonally adjacent to either 1 or 5.