This page is not an official page of the app or its developer, but an independent editorial publication created for informational and commentary purposes. Unless expressly stated otherwise, neither the app nor its developer is affiliated with, endorsed by, sponsored by, authorized by, or otherwise officially connected with MWM, Apple, Google Play, the app publisher, or the app's developer, and nothing on this page implies that the app was developed using MWM's services. Any trademarks, logos, screenshots, and other content remain the property of their respective owners.

Nonograms Katana

Name: Nonograms Katana
Availability: InStock
Rating: 4.75 (15000 reviews)

Sharpen your mind with thousands of free picross puzzles. From meditative 5x5 grids to massive 50x50 challenges, immerse yourself in a world where logic, not luck, reveals beautiful pixel art.

Games ›Brain Training ›

Key Figures

Downloads

788K+

User Rating

4.8/5

Total Ratings

15K+

Publisher

Ucdevs Interaction DOO

Sharpen Your Mind, One Pixel at a Time

Master the art of logic with over 1,000 hand-crafted puzzles. Whether you're a casual solver or a grid master, discover a world where every square is a step toward a masterpiece.

Endless Logic Challenges

Dive into 1,001+ free puzzles ranging from 5x5 quick sessions to massive 50x50 grids designed to keep your brain active and focused.

Pure, Verified Solutions

Every puzzle is computer-tested to ensure a unique, logical solution. Experience the satisfaction of pure deduction without the need for guessing.

The following screenshots and description are sourced directly from the app's official store listing and are the property of the app developer.

App Store

Screenshots

Nonograms Katana - A large elephant pixel art image revealed on a logic puzzle grid in Nonograms Katana. — A large elephant pixel art image revealed on a logic puzzle grid in Nonograms Katana.

Nonograms Katana - A black and white nonogram puzzle of a Viking ship with a decorative floral background. — A black and white nonogram puzzle of a Viking ship with a decorative floral background.

Nonograms Katana - A completed large color nonogram puzzle depicting a woman and a horse — A completed large color nonogram puzzle depicting a woman and a horse

Nonograms Katana - A solved colored nonogram puzzle revealing an image of an orange slice and green leaves — A solved colored nonogram puzzle revealing an image of an orange slice and green leaves

Nonograms Katana - A completed color nonogram puzzle of a detailed dragon eye in the Nonograms Katana app — A completed color nonogram puzzle of a detailed dragon eye in the Nonograms Katana app

Nonograms Katana - A completed giraffe pixel art puzzle in the Nonograms Katana app showing level success stats and rating options. — A completed giraffe pixel art puzzle in the Nonograms Katana app showing level success stats and rating options.

Nonograms Katana - Main menu of the Nonograms Katana app featuring a Japanese katana sword and a traditional landscape background — Main menu of the Nonograms Katana app featuring a Japanese katana sword and a traditional landscape background

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