Free printable · With answers
Free Printable Nurikabe Puzzles
Every number is an island of that many cells. Shade the rest as sea: one connected sea, and no 2x2 pools.
About Nurikabe Puzzles
Nurikabe is a Japanese shading puzzle about islands and sea. Each number belongs to an island with exactly that many white cells. Everything else is shaded sea, which must form one connected body of water with no 2x2 shaded squares.
How to solve Nurikabe
- Island sizes: Each number is part of a white island with exactly that many cells.
- One number per island: Every island holds exactly one number, and islands never touch along an edge.
- One sea: All shaded cells connect into a single group.
- No pools: No 2x2 square may be fully shaded.
Reading the sheet
- Shaded cells in the answer key are the sea.
Questions
Where do I start a Nurikabe?
Every 1 is a finished island, so shade all four of its neighbours. A cell between two numbers is sea too, because it would join two islands.
How do I save these as a PDF?
Press Print / Save PDF and choose "Save as PDF" as the printer. Press New puzzles for a different set; there are 500 to draw from.
Play Nurikabe online
Solve with undo, hints and a fresh puzzle whenever you want, right in your browser.