What is a Nonogram?
A Nonogram is a picture logic puzzle where row and column clues describe consecutive filled runs.
33533
15551
Read the margins
Numbers become a picture.
Each number tells you the length of a filled run in that row or column. Separate multiple runs with at least one empty square.
Nonograms are also called Picross, Griddlers, and Picture Cross. Whatever the name, every published grid here is checked to solve without guessing.
Common questions
Do I need to guess?
No. Every published puzzle passes a no-guess solver before release.