Nurikabe tips


  • Start with easy steps such as clues of 1, clues which are diagonally adjacent and clues which are separated by one square.
  • Mark with small dots squares you know are part of an island. This will help narrow down possibilities later on.
  • Look for places where a wall can only be continued in one direction.
  • Check if 2x2 wall sections might be formed. Sometimes this is trickier than it seems.
  • Always double check before shading or marking a square with a dot.
  • Never guess! Only make moves based on logical deductions.

Note: There is only one unique solution for each puzzle.

When solving on paper

  • Use a soft erasable pencil and a high quality eraser.

When playing on a computer

  • Use Preferences options in toolbar for a better personal playing experience.
  • Use the Mark square feature when trying to determine what the content of one or more squares should be.
  • Highlight wall segments to check whether isolation is about to occur. To highlight a wall segment, point mouse on any square belonging to the wall.