The goal of SquarO is to find the circle to fill in black.
In each square, you have a number between 0 and 4 which corresponds to the number of circles around that square that must be filled.

Example and Solution :


All the grids have a unique solution. To fill a cirlce, click on it.

For evil SquarO, the number can be between 0 and 8 which corresponds to the number of half-circles around that square that must be filled. Enjoy !