Nonogram / Picross

Look at the number clues on the left side (rows) and top (columns) of the grid

Numbers indicate how many consecutive filled squares are in that row or column

Multiple numbers mean there are separate groups with at least one empty space between them

Use 'Fill Mode' to mark squares as filled (dark) when you're sure they should be filled

Use 'Mark Mode' to place X marks on squares you know should be empty

Click and drag to quickly fill or mark multiple adjacent cells

Let viewers suggest which cells to fill or mark next

Create collaborative puzzle-solving sessions with chat participation

Use the logical deduction process to teach problem-solving skills

Challenge your audience to solve puzzles faster than you can

Perfect for relaxing, methodical content that encourages participation

Great for demonstrating pattern recognition and logical thinking

Each number clue indicates a group of consecutive filled squares

Multiple numbers in a clue mean separate groups with gaps between them

The order of numbers matches the order of groups from left to right (or top to bottom)

There must be at least one empty square between different groups

Fill Mode marks squares as part of the final image

Mark Mode helps you track squares that should definitely be empty

Start with rows and columns that have large numbers or simple patterns

Look for clues where the numbers add up close to the total grid size

Use the Mark Mode to eliminate impossible squares early

Work systematically - solve what you can, then look for new possibilities

Cross-reference row and column clues to find definite squares

When stuck, look for the intersection of solved rows and columns