Nonogram

Numbers say how many cells in a row are filled

Rules

Fill the cells so that every row and column matches its numbers: each number is a run of filled cells, and runs are separated by at least one empty cell. Swipe to fill a whole line at once; switch to Cross to mark cells you know are empty.

Board sizes: 5×5 · 10×10 · 15×15
Difficulty: Easy · Medium · Hard
Daily set: yes, in rotation
Hints: named techniques