Nonograms Katana

Contains adsIn-app purchases
4.7
178K reviews
5M+
Downloads
Content rating
Teen
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About this game

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 and font
- Switch day and night modes, customize color schemes
- Optional cursor for accurate picking
- Undo and redo
- Share result pictures
- Save game progress to the cloud
- Achievements and leaderboards
- Screen rotation, as well as puzzle rotation
- Suitable for phones and tablets

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

The Guild Expansion:
Welcome to the Adventurers Guild!
By solving puzzles, you will get loot and experience.
You will have a weapon that allows you to deal with puzzles much faster.
You will be able to complete quests and receive a reward.
You will have to rebuild the settlement and collect the lost mosaic piece by piece.

site: https://nonograms-katana.com
facebook: https://www.facebook.com/Nonograms.Katana
Updated on
May 17, 2022

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
App activity, App info and performance, and Device or other IDs
This app may collect these data types
Personal info, App activity and 2 others
Data is encrypted in transit
You can request that data be deleted
4.7
178K reviews
Eric Prine
May 1, 2022
I love this game so much, but lately, any time I close an ad, the game crashes. Full black screen. And closing and reopening it doesn't fix it. It stays crashed for about an hour. I've tried uninstalling and reinstalling, but still have the same issue. Please fix this!
11 people found this review helpful
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Rin Morningstar
March 3, 2022
I've had this game for years, while everything else has come and gone. The game progression mixes short- and long-game goals very well. If I take a break, it just sits quietly and waits for me to back. HUGE and active collection of user-submitted puzzles. The competitive part is unobtrusive and entirely optional.
47 people found this review helpful
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Nathan Bianco
March 2, 2022
This game is honestly so well made. Not only are the puzzles challenging and incredibly fun, but it also has endless content, both from the developer and the vibrant user community. Plus, the game features a fun progression system of leveling up and building up your village while managing resources you earn from solving puzzles. 10/10 quality content!
17 people found this review helpful
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What's new

15.4
- 37 of 1001 standard puzzles was replaced
- Synchronization protocol version upgraded
- Minor fixes and improvements