Nurikabe: Islands & Walls

Conceptis Ltd.

In-app purchases

About this game

Partition between clues with walls to create islands with corresponding size! Each puzzle consists of a grid containing clues in various places. The object is to create islands by partitioning between clues with walls so that the number of squares in each island is equal to the value of the clue, all walls form a continuous path and there are no wall areas of 2x2 or larger. Each island must contain one clue and be isolated from other islands horizontally and vertically.

Nurikabe are addictive island-forming puzzles which were invented in Japan. Using pure logic and requiring no math to solve, these fascinating puzzles offer endless fun and intellectual entertainment to puzzle fans of all skills and ages.

The game features a highlighting option to help see if a wall segment is about to become isolated, and an island size counter to view how many squares belong to an island.

To help see the puzzle progress, graphic previews in the puzzle list show the progress of all puzzles in a volume as they are being solved. A Gallery view option provides these previews in a larger format.

For more fun, Conceptis Nurikabe includes a Weekly Bonus section providing an extra free puzzle each week.

PUZZLE FEATURES

• 90 free Nurikabe puzzles
• 30 extra-large puzzles bonus for tablet only
• Extra bonus puzzle published free each week
• Multiple difficulty levels from very easy to extremely hard
• Puzzle library continuously updates with new content
• Manually selected, top quality puzzles
• Unique solution for each puzzle
• Hours of intellectual challenge and fun
• Sharpens logic and improves cognitive skills

GAMING FEATURES

• Unlimited check puzzle
• Unlimited Undo and Redo
• Highlight wall segments
• Show island size counter
• Concurrently playing and saving multiple puzzles
• Puzzle filtering, sorting and archiving options
• Graphic previews showing puzzles progress as they are being solved
• Portrait and landscape screen support (tablet only)
• Track puzzle solving times
• Backup & restore puzzle progress to Google Drive

ABOUT

Nurikabe have also become popular under other names such as Islands in the Stream and Cell Structure. Similar to Sudoku, Kakuro and Hashi, the puzzles are solved using logic alone. All puzzles in this app are produced by Conceptis Ltd. - the leading supplier of logic puzzles to printed and electronic gaming media all over the world. On average, more than 20 million Conceptis puzzles are solved each day in newspapers, magazines, books and online as well as on smartphones and tablets across the world.

Ratings and reviews

Excellent mechanics, and an incredibly rich puzzle set. You get 90 puzzles for free, but there are weekly puzzles as well, so you're always getting a little bit of new free content. There are hundreds of level packs beyond the free ones, and they are certainly worth their cost, especially considering that this app is completely ad-free. I would 100% recommended this to anyone who enjoys Nurikabe, or who wants to find out what this little number game is like.

On my phone, the game seems to have a bug in which it doesn't recognize when the puzzle is actually solved. After completing the first puzzle, when nothing happened, I actually clicked [solve] to see if I'd missed something, and I hadn't. The puzzle cleared out after that. I tried the next puzzle, and the same thing happened. Instructions seem clear enough, so I'm left to conclude that it's a bug. It doesn't seem very challenging for me, anyway.

Another solid Conceptis entry. The only real issue I have is that the larger puzzles aren't great on a phone screen. Either you're zoomed out and it's a bit small, or you're zoomed in and missing a good chunk of the board. It doesn't matter that much though because they have solid challenges in all sizes. One of my favorites for sure!

What's new

This major update introduces new architecture, features and improvements:

• Puzzle packs are now split into Library, showing free and purchased puzzle packs, and Shop, showing puzzle packs you can buy
• Filtering by difficulty, size, and price
• Improved sorting options
• Previous/next navigation when completing a puzzle
• Wishlist
• Archiving in the Library section
• Automatic restoring purchases when re-installing the app
• Automatic puzzle pack list refreshing in the Shop section