How to Play
- Read the numbers beside each row and above each column.
- Each number is a run of filled cells in that line.
- Separate multiple runs with at least one empty cell.
- Tap a cell once to fill it, tap again to mark it with X, and tap a third time to clear it.
- Solve every filled cell in the hidden picture to finish the puzzle.
About Nonograms
Nonograms are picture logic puzzles, also called griddlers or Japanese crosswords. The numbers around the grid describe the shape of the hidden picture, and each correct deduction turns the blank board into pixel art.
Classic Picture Logic Puzzle in a Fresh Notebook Style
This collection includes over 100 handcrafted puzzles across four grid sizes: 5×5 for beginners, 10×10 for comfortable solvers, 15×15 for experienced players, and 20×20 for expert-level challenges. Every puzzle has a single unique solution reachable entirely through logic.
The notebook-style layout keeps clues readable and cells easy to tap on any screen size — phone, tablet, or desktop.
Free Nonograms With No Ads or Download
These Nonograms open directly in your browser. There is no app to install, no account to create, no payment, and no ads interrupting the puzzle.
Open the page on your phone, tablet, or desktop and start solving immediately. It is made for people who want a clean free online logic game without noise.
A Simple Brain-Friendly Game for Deduction and Focus
Nonograms are good puzzles for short focused breaks because every mark should follow from the clues. You need to count carefully, compare rows and columns, remember confirmed empty cells, and build the hidden picture step by step.
The rules are simple enough for many ages, but the puzzle still rewards logic, patience, visual reasoning, pattern recognition, and careful problem solving.
Nonograms Strategy and Tips
What makes Nonograms interesting?
A Nonogram gives you all the information you need, but not all at once. One certain mark in a row can unlock a column, and that column can make another row clear. The puzzle is about patiently connecting those little certainties.
Simple Nonograms strategy
A useful beginner strategy is to start with the biggest row or column clues. Large clues often overlap no matter where the run begins, which gives you safe filled cells. Then use those confirmed cells to unlock nearby rows and columns without guessing.
Good habits for solving the grid
- Start with rows or columns that have large numbers.
- Look for clues that must overlap no matter where the run begins.
- Mark confirmed empty cells with X so you do not recount them later.
- Use completed rows and columns to check nearby clues.
- Avoid guessing until every clear deduction is exhausted.
Why people enjoy playing Nonograms online
They have a calm rhythm: count, compare, mark, and watch a picture emerge. Small puzzles are quick and friendly, while larger boards reward slower deduction and careful visual scanning.
FAQ
What are Nonograms?
They are picture logic puzzles where row and column clues reveal hidden pixel art.
How do I read the clues?
A clue like 3 1 means three filled cells, at least one empty cell, then one filled cell.
Do X marks count against me?
No. X marks are notes for empty cells. Only filled cells are checked against the solution.
Does this version save my best time?
Yes. Your best solve time is saved for each puzzle size in this browser.
Are Nonograms the same as Picross?
They are the same type of picture logic puzzle. Nonograms are also commonly known as Picross, Griddlers, Japanese crosswords, or paint-by-numbers puzzles.
Are Nonograms logic games?
Yes. Nonograms are logic puzzles based on deduction, row and column clues, pattern recognition, and careful counting.
The History of Nonogram Puzzles
Nonograms were independently invented in the late 1980s by two people: Non Ishida in Japan, who called her version "Window Art Puzzles," and Mario Giuseppe Marietta in Britain, who named his "Paint by Numbers." The puzzles became widely popular after Japanese publisher Nikoli introduced them in 1988 under the name Nonogram, combining Non Ishida's name with the Japanese word for diagram. They spread globally through puzzle books in the 1990s and became a staple of handheld gaming when Nintendo published the Mario's Picross series in 1995. Today they are known by many names — Picross, Griddlers, Hanjie, and Pic-a-Pix — and remain one of the most popular paper-and-pencil logic puzzle formats in the world.
Solving Techniques for Nonograms
Every nonogram in this collection can be solved by pure logic. These techniques cover most situations:
- Overlap method: if a clue number is larger than half the row length, the middle cells are always filled. For a clue of 7 in a 10-cell row, cells 4–7 are guaranteed filled.
- Edge technique: a clue at the start of a row must begin at the first available cell — count inward from both edges to find forced fills.
- Space elimination: if completed clue blocks account for all available cells, every remaining cell must be empty.
- Cross-referencing: when you fill or mark a cell from one direction (row), immediately check whether that cell's column clue changes the picture too.
- Mark empty cells with a dot as you go — treating confirmed empty cells as anchors makes the remaining clue ranges much clearer.
Why Nonograms Are a Uniquely Satisfying Puzzle Format
Nonograms occupy a rare position in puzzle design: they are simultaneously constrained enough to be solvable by pure logic and open enough to produce a rewarding visual payoff. Each solved cell contributes to a hidden picture, which means every correct deduction has both logical and aesthetic feedback — a combination that keeps the brain engaged longer than number-only puzzles. From a cognitive perspective, nonograms train the ability to hold multiple simultaneous constraints in working memory while scanning for overlaps, a skill closely related to the kind of systematic attention required in reading technical diagrams, following assembly instructions, or working with spreadsheets.