Nonogram

How to play

• The numbers by each row and column give the lengths of its filled blocks, in order.
• There is at least one empty cell between two blocks.
• So "3 1" means three filled cells in a row, at least one empty, and then one filled.
• When every row and column matches, the picture is finished. Every puzzle has one solution only.

Using the game

• Tap a cell to fill it. Drag to fill several in the same row or column.
• Switch to Cross to mark cells that stay empty. On a computer you can also cross out with the right mouse button.
• The numbers of a line that matches turn grey.

Difficulty

• Easy: 10 × 10 cells. 5–10 minutes.
• Medium: 15 × 15 cells. 10–25 minutes.
• Hard: 15 × 20 cells. 20–40 minutes.

Keyboard

• Arrow keys: move between cells
• Space / Enter: fill or cross, depending on the mode
• F: fill or empty the cell
• X: cross out or remove the cross
• M: switch between Fill and Cross
• Backspace / Delete: empty the cell
• Ctrl + Z or U: undo
• H: hint
• P: pause

Questions

Where does the puzzle come from?
Nonograms were invented in Japan in the late 1980s by Non Ishida and Tetsuya Nishio and are also called Hanjie, Picross or griddlers. This version and its puzzle generator are our own, so the pictures are random patterns rather than motifs.

Is there always a unique solution?
Yes. Every puzzle is checked so that it can be solved one row or column at a time, without guessing. That means there is only one solution.

Is my puzzle saved?
Yes, in this browser. You can close the page and continue later.

Can I play the same puzzle as a friend?
Yes. Tap the puzzle code and send the link.

Questions and answers

More pen and paper

• Binairo
• Block Puzzle
• Codebreaker
• Queens
• Sonar
• Sudoku
• Tectonic
• Word Chase