Rules -- Artist's Block

Artist's Block was invented by the Japanese puzzle company Nikoli (under the name Tentai Show).

1. Divide the grid into black and white pieces along the grid lines, according to the following rules. (The solution will form a picture.)
2. Every piece must contain exactly one entire dot.
3. Every piece must have 180-degree rotational symmetry, with the dot being at the center of symmetry for that piece.
4. Every piece must match the color of its corresponding dot.