Author: Andrey Bogdanov
Paint some cells to obtain six white areas that do not touch each other and each consists of six connected white cells. Some cells are already painted.
Grid control: Click the mouse button at the selected cell to change the color of the cell. Second click will put auxiliary cross sign, which doesn't affect correctness of the solution, but helps visually. You can also drag the content of one cell to another with the mouse. More details about grid control are at the help page.