Nonogram / Picross — 10x10

What you can do with this Nonogram generator

Generate printable 10×10 Nonogram puzzles — also known as Picross, Griddlers, or paint-by-numbers logic puzzles. Each puzzle displays numeric clues along the top and left edges; you use those clues to determine which cells to shade. When you finish, the filled grid reveals a recognisable picture: a heart, cat face, sailboat, tree, bird, coffee mug, or flower with stem. The generator pulls from a hand-curated bitmap library so every solution is visually clear, not a random speckle.

Print one to four puzzles per page. Include solution keys if you're preparing classroom packs or want an answer reference. Leave solutions off for a cleaner worksheet. Every PDF carries the PrintablesWorld branding footer and a QR code back to the generator page, so you can regenerate or share the link later.

What you can customise

• Puzzles per page — choose 1, 2, 3, or 4 puzzles to fit your printing preference and paper size.
• Include solutions — toggle the solution key on or off; solutions print on a separate page with the correct cells shaded.
• Seed — enter any text seed (or leave blank for a random pick). The same seed always produces the same sequence of images, so you can recreate a favourite puzzle or generate matching sets for a class.

How to use the tool

1. Leave the size at 10 (this page only generates 10×10 grids).
2. Select how many puzzles you want on a single page — one large puzzle or up to four smaller ones.
3. Tick "Include solutions" if you want an answer key on a following page.
4. Optionally type a custom seed (any word or phrase) to lock in a specific sequence of images. Leave it blank for random selection.
5. Click Generate PDF. Your browser downloads a ready-to-print file in seconds.
6. Open the PDF, check the layout, and print on A4 or US Letter paper. The grids auto-scale to fit either standard size.

Who these puzzles are for

Teachers

Use 10×10 Nonograms as warm-up logic activities, early-finisher tasks, or Friday puzzle time. The medium grid size takes 10–20 minutes for most students, and the picture reveal offers instant visual feedback. Print solution keys to save marking time.

Parents and homeschoolers

Hand out a sheet during travel, waiting rooms, or quiet afternoon time. Kids aged 8 and up usually manage 10×10 grids with a little coaching on how run-length clues work. The recognisable pictures (cat, sailboat, tree) keep motivation high.

Solo puzzle enthusiasts

10×10 grids sit in the sweet spot between trivial and tedious. You'll need scratch notes or pencil marks to track possibilities, but you won't spend an hour on a single puzzle. Generate a batch with solutions off, solve at your own pace, then regenerate with solutions on to check your work.

Worked classroom example

A Year 5 teacher wants a Friday logic station with four different puzzles for rotation groups. She opens the generator, sets count to 4, ticks Include solutions, and types the seed Friday-Week3. She clicks Generate and prints six copies of the two-page PDF — one puzzle page and one solution page. Each group of four students receives one copy; they work in pairs, rotating through the four puzzles. At the end of the session, the teacher projects the solution page on the smartboard so everyone can check their sailboat, mug, bird, and tree reveals together.

How it works under the hood

The generator holds a library of hand-drawn 10×10 bitmaps — each a grid of filled and empty cells arranged to form a recognisable silhouette. When you generate, the tool picks images by rotating through this library (influenced by your seed or a random value). For each chosen bitmap, it counts consecutive filled cells in every row and column to produce the Nonogram clues. Those clues, plus empty grid templates, are typeset into a branded PDF using pdf-lib. Solutions mirror the original bitmap with cells pre-shaded.

Solving tips

• Start with rows or columns that have large single numbers — a clue of "8" in a 10-cell row leaves only two blanks, so you know the middle eight cells must all be filled.
• Mark definite empties with a small dot or X; this prevents mistakes when clues have multiple runs.
• Work back and forth between rows and columns. A single confirmed cell often unlocks an entire perpendicular line.
• Use pencil if you're printing, or work on scrap paper. Nonograms reward trial logic but punish careless ink mistakes.

Designed for A4 and US Letter printing

Every PDF uses responsive grid scaling so puzzles fit cleanly on both A4 (210 × 297 mm) and US Letter (8.5 × 11 in) paper. Margins and cell sizes adjust automatically; you won't see clipped clues or cramped grids. Print directly from your browser or save the file for later batch printing.

Notes and limitations

• This page only generates 10×10 puzzles. For smaller 5×5 grids or larger 15×15 challenges, visit the corresponding size pages in the Logic Puzzles category.
• Images are drawn from a fixed curated library (eight designs at 10×10). You won't get infinite unique pictures, but changing the seed rotates through the set in different orders.
• The generator does not create custom images from uploaded photos or text. Every puzzle reveals one of the pre-designed bitmaps (house, cat, sailboat, tree, bird, mug, flower, large letter A).
• All puzzles have exactly one valid solution by design — the library bitmaps are crafted to avoid ambiguity.