Constraint: Entropy
Opened this issue · 1 comments
magnageas commented
Each 2x2 box in the grid has to contain at least one low digit (1, 2, 3), one medium digit (4, 5, 6) and one high digit (7, 8, 9).
magnageas commented
example puzzle: https://f-puzzles.com/?id=y3sktgcq