By:  fred
Which collection?                 Which Level?  







Num Squares to Color: 

Color each square white or black.
Click to blacken a square, click again to white it, again to re-gray it.
(or shift-click to white);

The numbers indicate how many white squares can be 'seen' horizontally and vertically from the cell.
Cells see themselves. They do not see thru black square.

ALSO:
	All white cells must be connected as a single polyomino:
		a continuous path attached at edges
	Each black cell MUST be isolated from other black cells (not attached at edges).

Kuromasu is an original puzzle of Nikoli;
it first appeared in Puzzle Communication Nikoli #34 (June 1991).