Nonogram
Nonogram — also known as Picross, Griddlers or 数织 — is a logic puzzle that hides a picture inside a grid. Every row and column carries number clues giving the lengths of unbroken runs of filled cells, in order, with at least one gap between them. From those clues alone you deduce, cell by cell, exactly which squares belong to the picture and which stay empty.
How to play
- Read each row's and column's clue numbers — each number is the length of one run of filled cells.
- Tap a cell to fill it when you have proven it belongs to the picture.
- Use the mark action to cross out cells you have ruled empty.
- A clue dims once its line is satisfied — use that to confirm your progress.
- Fill every correct cell to reveal the hidden image — five wrong fills end the round.
Tips
- Start with the biggest clue numbers — a long run leaves little room to slide and often fills cells outright.
- A clue dims when its row or column is satisfied — use the dimmed lines to confirm your progress.
- Cross out cells you have proven empty; the marks keep your deductions clear and prevent wrong fills.
FAQ
- Is Nonogram free to play?
- Yes. Nonogram runs free in your browser with no installs, sign-up, or downloads, on both desktop and mobile.
- How do you win Nonogram?
- You win by filling exactly the cells that form the hidden picture, deduced from the row and column clues. Five wrong fills end the round.
- Do you ever have to guess in Nonogram?
- No. A careful reading of the row and column number clues always settles each cell, so the puzzle can be solved by pure logic.
- Does Nonogram work on mobile?
- Yes. It is touch-friendly with hand-authored 5×5 and 10×10 puzzles that scale to phone and tablet screens.