How to play
- Read the clues. The numbers beside each row and above each column are the lengths of the blocks of filled squares in that line, in order. "3 1" means a block of 3, then at least one gap, then a block of 1.
- Fill squares by tapping them, or press and drag to fill several.
- Mark squares you know are empty with an X: press X mode, then tap. X marks are just notes for you.
- Solve it when every row and column matches its clue. A hidden pattern appears as you go.
Worked example
Take a row of 10 squares with the clue 8. Wherever the block of 8 sits, it must cover squares 3 to 8:
- Pushed as far left as it goes, it fills squares 1 to 8.
- Pushed as far right as it goes, it fills squares 3 to 10.
- Squares 3 to 8 are filled in both cases, so you can fill those 6 squares straight away.
This "overlap" trick works for any clue: the number of sure squares is the clue minus the free space (10 − 8 = 2, so 8 − 2 = 6).
Tips
- Start with big numbers. Clues close to the full width give the most overlap.
- A line whose clues and gaps add up to the full width can be filled completely. For example, "4 5" in a row of 10 needs 4 + 1 + 5 = 10 squares.
- Use X marks once a line is done, so you can see which squares are left.
- Switch between rows and columns. Each square you fill gives you new information for the other direction.
Frequently asked questions
Can a puzzle have more than one answer?
Sometimes. Each picture is made at random, so now and then two different patterns fit the same clues. Any pattern that matches every clue counts as solved.
What is a nonogram?
A nonogram is a picture logic puzzle that is also known as paint by numbers. Our version was written from scratch, and it isn't connected with any other company's game.
Is my progress saved?
No. We don't use cookies or browser storage, so the puzzle is gone if you close or reload the page.