Nonograms Katana 12+

Sharpen your mind‪!‬

Ucdevs Interaction DOO

Designed for iPad

    • 4.8 • 1.4K Ratings
    • Free
    • Offers In-App Purchases

Screenshots

Description

Nonograms Katana: Sharpen your mind!

Nonograms, also known as Hanjie, Griddlers, Picross, Japanese Crosswords, Japanese Puzzles, Pic-a-Pix, "Paint by numbers" and other names, are picture logic puzzles in which cells in a grid must be colored or left blank according to numbers at the side of the grid to reveal a hidden picture. The numbers are a form of discrete tomography that measures how many unbroken lines of filled-in squares there are in any given row or column. For example, a clue of "4 8 3" would mean there are sets of four, eight, and three filled squares, in that order, with at least one blank square between successive groups.
To solve a puzzle, one needs to determine which cells will be boxes and which will be empty. Determining which cells are to be left empty (called spaces) is as important as determining which to fill (called boxes). Later in the solving process, the spaces help determine where a clue (continuing block of boxes and a number in the legend) may spread. Solvers usually use a dot or a cross to mark cells they are certain are spaces.
It is also important never to guess. Only cells that can be determined by logic should be filled. If guessing, a single error can spread over the entire field and completely ruin the solution.

Features:
- 1001 nonograms
- All puzzles are free
- All puzzles tested by computer program and have unique solution
- Black-and-white and colored
- Nonograms sorted by groups from 5x5 to 50x50
- Download puzzles sent by other users
- Create and share your own puzzles
- 15 free hints per puzzle
- Use crosses, dots and other symbols to mark cells
- Auto cross out numbers
- Auto fill trivial and completed lines
- Auto save; if you stuck you can try another puzzle and come back later
- Zoom and smooth scrolling
- Lock and zoom number bars
- Lock current puzzle state, check assumptions
- Customize background
- Optional cursor for accurate picking
- Undo and redo
- Share result pictures
- Save game progress to the cloud
- Achievements and leaderboards
- Screen rotation
- Suitable for phones and tablets

VIP Features:
- No Ads
- View Answer
- 5 extra hints per puzzle

site: https://nonograms-katana.com
facebook: https://www.facebook.com/Nonograms.Katana

What’s New

Version 13.0

13.0
- Themes for a puzzle list (the old theme can be set in the game settings)
- Auto downloading of previously completed puzzles (After reinstall, etc.)
- Series: new sorting "Rating / Number of episodes", now it's default
- New options: Snap preview to number bars, snap preview in edit mode
- Tap the preview to scroll the puzzle to the specific location (Works only if both number bars are locked. Better with a stylus.)
- My Nonograms: option to use a secondary English name instead of a local name (default for English speaking users)
- Minor fixes

Ratings and Reviews

4.8 out of 5
1.4K Ratings

1.4K Ratings

475th reviewer ,

Amazing app

The only game with ads I’ve ever played where I think the ads are actually reasonable. I get a 5 second ad if I start a new puzzle and a 30 second ad if I want to get 30 hints for a puzzle. You get 15 free hints for every puzzle so I rarely need to top up my hints. So many games give you ads so often that they become unusable but the number of ads you get to play for free in this game is completely fair.

The app itself is also fantastic. Loads of puzzles to chose from and lots of different levels. It’s very easy to filter for what I want as there are filters for size and theme and users rate the puzzles based on picture quality, fun solving and difficulty.

I never leave reviews but I love this app so much. If you like nonograms this is the best app for it.

Babypeanutz ,

So much choice!

Love this app. Addicted to these puzzles on paper a few years ago, but seemingly impossible to buy now, I’ve been searching for an even half decent digital version. I have tried many and this is the best by far! Totally free and a seemingly endless supply of puzzles to suit all moods and abilities. From small 2 shade puzzles to intricate multi coloured 80x80 grids. Easy to navigate contents page so you can jump right in to the puzzles you want, the ability to favourite your best puzzles, and even 15 ‘helps’ if you find yourself stuck.
The controls can seem a little tricky to master at first, but you soon get used to it and it’s so worth it.
Very very happy with this app and have deleted all other imposters! Well done :)

S.A.B.R ,

Superb app

This app has taught me how to do nonograms and turned me into a complete addict. The level of control you are able to set up inside the setting options is amazing. Allowing users to select the level of help they want from the app.

I have seen complaints about losing lines when making mistakes etc. If this happens I suggest reading the game instructions and altering your settings. You can actually lock and unlock lines so you don’t lose work.

Download this app if you’re a beginner or pro, it has everything for all levels.

App Privacy

The developer, Ucdevs Interaction DOO, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Contact Info
  • User Content
  • Identifiers

Privacy practices may vary based on, for example, the features you use or your age. Learn More

Supports

  • Game Center

    Challenge friends and check leaderboards and achievements.

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