Nonogram books and magazines: a guide to the printed side

Why the printed form persists

A nonogram needs almost nothing from a computer. The clues are numbers in the margin, the grid is a grid, and the entire logic of the puzzle happens in the solver's head. That is not true of most puzzle types that made the jump to screens — a nonogram loses less in print than a word search does, and gains something in return: no undo button, no auto-marking, and a physical page you can put down half-finished and come back to.

It also explains why the format survived under so many names. The puzzle was popularised in Japan in the late 1980s and travelled through magazines rather than software, which is why the same thing is called Picross, Griddlers, Hanjie, Paint by Numbers, Pic-a-Pix and Crucipixel depending on which publication introduced you to it. A book bought under any of those names contains the same puzzle.

What to look for in a collection

The single most important quality in a printed nonogram book is one that is hard to check from the cover: every puzzle should have exactly one solution, reachable by logic alone. A book that includes ambiguous grids is not offering harder puzzles, it is offering broken ones — at some point the only way forward is to pick a branch and see whether it works out, and if you picked wrong you may not find out for twenty minutes. Reputable collections say so explicitly, usually somewhere in the introduction.

After that, look at how the difficulty is organised. A good book ramps: small grids first, then larger ones, with the techniques the later puzzles require introduced by the earlier ones. A book that opens with a 25×25 is not a book for learning from. The same principle applies to size mix — a collection that is entirely one grid size gives you volume but not progression.

Third, check the printing itself. A nonogram is a lot of small squares and a lot of small numbers, and cheap production shows immediately: grids that are too small to mark comfortably, no heavier rule every fifth line, clue numbers that run together. The five-line grouping in particular is not decoration — counting to fourteen along an unmarked row is where most avoidable mistakes come from.

Books, magazines and the Picross games

Three distinct things get searched for under similar names, and they suit different purposes. Puzzle books are one-off collections, usually themed or graded, and are the best value if you want to work through a set. Magazine subscriptions deliver a smaller batch regularly, which suits a commute or a habit rather than a project — and, because they are periodicals, tend to include a mix of sizes and difficulties in every issue rather than a ramp.

The Picross games are a third category and worth being clear about: they are video games, most famously Nintendo's series that began on the Game Boy in 1995, and what they offer over paper is assistance rather than different puzzles. Mistake detection, automatic marking, undo. If you came to nonograms through one of those and a printed book feels harder, the puzzles are not harder — you have simply lost the safety net, which is the same reason paper solvers develop stricter marking habits.

Making your own printed set

If what you actually want is nonograms on paper rather than a specific book, you can produce them yourself for nothing. The solver on this site exports any grid as a PDF with the clues laid out around an empty board, an optional answer key on a second page, and the same heavier rule every fifth line that a well-printed book uses.

That covers the two things a collection gives you — puzzles and the ability to solve them away from a screen — while letting you choose the size mix. A sensible starting set is a handful of the 5×5 letters as warm-ups, several 15×15s for the main sitting, and one 20×20 kept back for an evening when you have the table space.

The one thing a home-printed set cannot easily replicate is curation. A good book has been arranged by somebody who thought about the order, and working through it in sequence teaches technique in a way that a random selection does not. The nearest equivalent here is to work a category in size order — animals runs from a single 5×5 up to 20×20, which is close to a ladder built for exactly that.

Frequently asked questions