Editing Nonogram (section)

===Glue===
Sometimes, there is a box near the border that is not farther from the border than the length of the first clue. In this case, the first clue will spread through that box and will be forced outward from the border. In the simplest case, whenever a box is present in the first or last cells of a row or column, the first or last clue must be aligned to the edge of that row or column.

[[File:Paint by numbers - Solving - Example5.png|right]]
Considering a row of ten cells with a box in the third cell and with a clue of ''5'', the clue of ''5'' will always span from the third to the fifth cell (but not necessarily to the second or the sixth). It is therefore possible to mark the third, fourth and fifth cell as belonging to the ''5''.

Note: This method may also work in the middle of a row, farther away from the borders.
[[File:Paint by numbers - Solving - Example6.png|right]]
* A space may act as a border, if the first clue is forced to the right of that space.
* The ''first'' clue may also be preceded by some other clues, if all the clues are already bound to the left of the forcing space.