Entropic Waterfall
- Region sum lines
- Entropic lines
The brief
Normal sudoku rules apply.
Entropy Columns: Every 3 consecutive cells along each column must contain a low digit (1,2,3), middle digit (4,5,6) and high digit (7,8,9).
Region Sum Lines: Box borders divide each blue line into segments with the same sum. Different lines may have different sums.