Ziffers of Entropy
- Entropic lines
The brief
- Normal sudoku rules apply.
- Each line is a ziffer line; pairs of digits an equal distance from the central spot always have the same difference, which is indicated by the digit on the central spot.
- Each line is also entropic; every group of three adjacent cells on a line must contain one low digit (1, 2 or 3), one medium digit (4, 5 or 6) and one high digit (7, 8 or 9.)