How to Play

What is a Nonogram?

A nonogram is a logic puzzle where you fill in cells on a grid to reveal a hidden picture. The numbers on the sides of the grid tell you how many consecutive cells to fill in each row and column.

Understanding the Clues

Each row and column has a set of numbers. These numbers tell you:

• How many groups of filled cells are in that row/column
• How many cells are in each group
• The order of the groups (left to right for rows, top to bottom for columns)

For example, if a row shows 3 1 2, it means there are three groups: first a group of 3 filled cells, then a group of 1 cell, then a group of 2 cells. There must be at least one empty cell between each group.

How to Solve

1. Start with the obvious: Look for rows or columns where the clues add up to nearly the full width/height. These are easiest to solve first.
2. Mark empty cells: If you know a cell must be empty, mark it with an X. This helps you see which cells are left to consider.
3. Use overlap logic: If a group must occupy a certain range of cells, any cells that would be filled regardless of where the group starts can be filled in.
4. Work back and forth: Solving one row often gives you information about columns, and vice versa. Keep checking both.
5. Don't guess: Nonograms are logic puzzles. Every cell can be determined through deduction alone.

Controls

Tips for Beginners

• Start with smaller puzzles (5x5) to learn the logic before tackling larger ones.
• Look for rows/columns with a single large number — these are often the easiest to start with.
• A clue of "0" means the entire row/column is empty.
• When clues add up exactly to the row/column length (accounting for required gaps), you can fill in the entire line.
• Marking empty cells is just as important as filling cells!