Difficulty

Hard Nonograms

Bigger or more fragmented grids for experienced nonogram players.

Puzzles

Hard boards

Butterfly Picross solution preview

Animals · Hard · 20x20

Butterfly Picross

Play Butterfly Picross, a 20x20 hard nonogram with a clean browser grid and saved progress.

Play
Owl 30x30 Nonogram solution preview

Animals · Hard · 30x30

Owl 30x30 Nonogram

Play Owl 30x30 Nonogram, a 30x30 hard nonogram with a clean browser grid and saved progress.

Play
Rocket Nonogram solution preview

Transport · Hard · 20x20

Rocket Nonogram

Play Rocket Nonogram, a 20x20 hard nonogram with a clean browser grid and saved progress.

Play
Sleeping Cat Nonogram solution preview

Cats · Hard · 20x20

Sleeping Cat Nonogram

Play Sleeping Cat Nonogram, a 20x20 hard nonogram with a clean browser grid and saved progress.

Play
Related sizes
10x1012x1215x1520x2030x3040x4050x5060x60

Themes

Related categories

Category Cat Nonograms

Cats, kittens, and feline silhouettes — quick picross puzzles that stay readable even on small grids.

 Category Dog Nonograms

Puppies, paws, and playful dog-themed nonograms for short, friendly solves.

 Category Animal Nonograms

A growing mix of animal puzzles: fish, rabbits, butterflies, birds, and pets.

 Category Japanese Nonograms

Calm Japan-themed picross: torii gates, sakura, lanterns, Mount Fuji, and kanji-inspired symbols.

 Category Bird Nonograms

Owls, ducks, songbirds, and other bird shapes in picross form.

 Category Fish Nonograms

Fish, water, and ocean-themed nonograms with clean, readable silhouettes.

Learn

Helpful guides

Guide What Is a Nonogram?

A short introduction for anyone who has seen picross grids and wants to know how they actually work.

 Guide How to Solve Nonograms

Practical tactics that work on almost every nonogram, from beginner grids to larger boards.

 Guide Nonogram Rules

The full set of nonogram rules, kept short.

About hard nonograms

Hard nonograms reward players who already trust their clue logic. Expect broken-up runs, bigger boards, and sections that only open up once you chain several lines together.

FAQ

FAQ

Are these nonograms free?

Yes. Every nonogram on the site is free to play in your browser, with no account and no ads inside the game.

Is my progress saved?

Yes. Your moves, timer, and completion are saved in your browser as you play, so you can close the tab and pick up where you left off.

Can I play on mobile?

Yes. Tap to fill a cell, use the mode buttons to switch between fill, X, and erase, and pan with a finger on larger grids.