Rules of Nurikabe (Flash)
Rules of Nurikabe (Text)
- Fill in the cells under following rules.
- You cannot fill in cells containing numbers.
- A number tells the number of continuous white cells. Each area of white cells contains only one number in it and they are separated by black cells.
- The black cells are linked to be a continuous wall.
- Black cells cannot be linked to be 2x2 square or larger.