Choose a puzzle difficulty
A useful practice challenge gives you something specific to reason about. The right level depends on familiarity with the rules, the type of puzzle and what you want from the session.
By Zehano · Original AI-assisted explanation and worked example · Updated 16 October 2026 · Editorial approach
A worked example
If you are new to nonograms, start by explaining what a row clue of 2,2 means in five cells. Once that is clear, try a row with several possible placements and use its crossing clues. Jumping to a larger board without understanding the run rule adds work without clarifying the actual gap.
Try it in three steps
- Check the rules with a small example.
- Attempt a board before using hints.
- Use the point where you became stuck to choose the next practice.
What to watch for
Difficulty labels are not standard across websites. Device controls, board size and hint availability all affect the experience.
Apply it to your own material
Choose one topic from your current course or project. Write down the question you want to answer, make an attempt, and keep a note of how you checked it. Use the example above as a pattern; replace its subject matter and assumptions rather than copying an answer into a different task.
Open Nonogram ↗