- ➊ Blacken some cells of the diagram [paper] resp. color the
gray cells of the diagram black or white [interactively].
- ➋ The black cells form stripes which are one cell wide. The
number, sequence and lengths of the stripes are specified by the clue number
sequences on the top and on the left edge of the diagram.
- ➌ Each clue number defines the length of a stripe in the
corresponding row resp. column.
- ➍ Two stripes of black cells are separated by at least one