How a nonogram works

Each number is a run of filled squares in that row or column. “3 1” means three filled squares, at least one gap, then one more, in that order. Fill the squares you are sure of, cross out the ones that must stay empty, and a small picture appears.

Every puzzle here has exactly one answer, and you never need to guess. If you feel stuck, look for the row or column with the biggest numbers; the middle of a long run is often already certain.

Read the full guide with five solving techniques

A new picture at midnight

The daily puzzle changes at midnight, New York time. Weekdays bring a 10 by 10 grid you can finish on a coffee break. Saturday and Sunday are 15 by 15. Each day is printed in its own ink, and the pictures you solve collect in your month.

Want more right now?

Practice grids are made fresh in your browser, as many as you like: 5 by 5, 10 by 10, 15 by 15 and 20 by 20. Working on a puzzle from a book or an app? Type its clues into the nonogram solver to check your answer step by step.

Questions

Do I need an account?

No. Your progress, times and collected pictures are saved in this browser only. Nothing you play is sent to a server.

Is it the same puzzle for everyone?

Yes. Everyone gets the same picture on the same day, so you can compare times with friends using “Copy my result”. The shared text never shows the answer.

What are nonograms also called?

Hanjie, griddlers, paint by numbers, picture cross and pic-a-pix are all names for the same kind of puzzle.