Nonogram Puzzles, a 300-Puzzle Book

What are nonogram puzzles?

Nonogram puzzles (you may have seen them called griddlers or hanjie) are grid logic puzzles. Along the side of each row and the top of each column is a short line of numbers. Each number is a run of filled squares, in order, with at least one empty square between runs. A row marked 3 1 has three filled squares together, a gap, then one more. Your job is to fill the grid so every row and every column matches its clue.

It sounds like a lot at first, but you’ll get the hang of it after a puzzle or two. You start with the rows where the numbers nearly fill the line, mark the squares that must be filled, put a small cross in the ones that must be empty, and the rest of the grid slowly gives itself up.

How this book works

This is a hyperlinked PDF that you solve on an e-ink tablet with a stylus. Filling in squares by hand is half the fun of a nonogram, and on a tablet you can shade, cross out and erase as often as you need without wearing a hole in the paper.

• 300 puzzles, one per page, in three levels of 100.
• Easy grids are 8 by 8, Medium 10 by 10 and Hard 12 by 12.
• A How to play page that walks through the clue numbers.
• Answers for every puzzle at the back.

We ran each puzzle through a solver and only kept the ones it could finish, so every grid can be worked out by logic. One thing to know up front: the finished grids are patterns, not pictures. That’s how most generated nonogram books work, and it keeps the focus on the reasoning instead of guessing at an image.

A Choose difficulty page leads to a list for each level with a tick box for every puzzle. Breadcrumbs take you back a step, arrows turn the page, and an Answer link in the corner of each puzzle opens its solution. The number on the answer takes you back again.

The file is drawn at each tablet’s own page size and comes for Supernote, reMarkable, Kindle Scribe, BOOX, Kobo, Quaderno and iPad. It’s $9 on every tablet.