ONE SQUARE AT A TIME
Nonogram.
A blank grid. A few clues.
A picture waiting to appear.
1,000 puzzles to explore, from small starter grids to larger challenges. Choose your size and keep your progress in this browser. Jump to puzzle ↓
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Puzzle 1 · 5 × 5
5 × 5 · 0 / 1000 completed on this device
Fill the numbered runs. Leave a gap between separate runs.
Drag along one row or column to paint a stroke. Switch to Move board to scroll a large grid; pinch zoom stays available. Outside the board, scroll the page normally. Keyboard: arrows move, Space fills, X marks empty, Delete erases. Browsing leaves your last played puzzle intact; saves stay on this browser.
The numbers describe consecutive filled runs, in order. Separate runs with at least one empty square. A zero means the whole line is empty. Small puzzles teach the rules; grid size labels describe size, not a measured difficulty rating.
FROM NUMBERS TO A PICTURE
How to play Nonogram
Fill squares using the numbers beside each row and above each column. Each number describes an unbroken run of filled squares. Separate runs need at least one empty square between them.
- Read a line. A clue of 3 1 means three filled squares, a gap, then one filled square, in that order. The runs can have extra space before, between or after them.
- Cross the clues. Use a row to learn about a column, then look back at the rows. Mark a square empty when you can rule it out. You can undo a stroke or ask for one logically certain hint.
- Reveal the picture. Fill every square that belongs in the picture. Blank squares do not all need an X to finish. Continue to another puzzle or return to your saved game later.
A LITTLE MORE TO KNOW
Before your next picture.
Are Nonogram, Picross and Griddlers the same kind of puzzle?
These names are commonly used for row-and-column picture logic. This game uses standard single-color rules. Colored clues and other variants are not included.
Does every puzzle have one answer?
Each published puzzle is checked from an empty grid for a unique answer and completion using our line-by-line logic engine. A hint explains a forced square. Grid size describes the board, not a measured human difficulty rating.
Where do the pictures come from?
The collection was created for Brainfold from small drawn grid patterns and programmatically composed picture motifs and geometric studies. Candidates are checked and filtered before publication. Familiar simple shapes can also occur in other puzzle collections; we do not claim each design is globally unique.
Can I play on my phone?
Choose Fill, Mark empty or Erase, then tap or drag along a row or column. Scroll around a larger board in its own area. You can still zoom the browser, and your progress stays in the current browser rather than synchronizing to another device.
What if I already have a puzzle to solve?
Use the Nonogram Solver to enter your own clues, request a certain hint or check whether several answers exist. The game and solver keep separate saved progress.