Nonogram

The numbers describe a hidden picture.

Also called picross or griddlers. Every row and column carries a clue: the lengths of its filled runs, in order. Fill the grid so every clue is true, and a small picture blooms out of it. Nonogram is the heart of Inkbloom and appears on every daily page.

How to play

A clue like 2 1 means two filled squares, at least one gap, then one more.
Tap to fill a square. Long-press to mark one you have ruled out.
Every row and column must match its clues exactly.

Tips and tricks

Start with the big clues. In a row of 10, a clue of 8 must cover the middle six squares wherever it sits. Imagine the run pushed fully left, then fully right, and fill the squares both positions share.
Add it up. Add a line's clue numbers plus one gap between each. If the total equals the line's length, the whole line is decided.
Mark what's empty. A ✕ is information. Empty squares fence in the runs beside them and often decide the rest of the line.
Work from the edges. A filled square touching the border belongs to that end's first clue, so you can usually extend it to its full length.
Close finished lines. Once every clue in a line is placed, mark the remaining squares empty.
Alternate rows and columns. Each square you settle in a row is a new fact for the column it sits in. Switch direction whenever you get stuck.
A 0 means nothing. A line whose clue is 0 has no filled squares at all.

Where to find it

It appears on every daily page, and the Library has Easy, Medium and Hard tracks of it. Stuck? A hint costs ink drops, and Inkbloom Plus makes hints unlimited.