Choco Banana

Sample

Progressing

Progressing

Solution

Rules

  1. Paint some of the cells black under the following rules.
  2. Black cells linked vertically and horizontally must always form a rectangle or a square.
  3. White cells (unpainted cells) linked vertically and horizontally must not form a rectangle or a square.
  4. A number indicates the number of cells of the area containing this cell.

List of puzzles