Print and play

Printable nonograms

Three nonogram puzzles on one sheet, from a 5 by 5 to a 12 by 15, with the answers on the second page. Every puzzle was checked to have exactly one solution before it was printed here, so a finished sheet that differs from the answer key is a mistake rather than a second way to solve it.

What is on the sheet

  • Easy: a 5 by 5 puzzle that takes about a minute and teaches the one rule you need.
  • Medium: a 10 by 10 that needs the overlap trick — the place where a block of five has to sit whatever happens.
  • Hard: a 12 by 15 with long clues and rows that only resolve once the columns around them do.
  • The answers on the second page, in the same order, with the filled cells shaded in.

How to read the clues

The numbers down the left edge describe each row, top to bottom. The numbers across the top describe each column, left to right. A number is a run of filled cells; if there are two numbers, there are two runs with at least one empty cell between them, in that order. A row whose clue is 3 1 has three filled cells, a gap, then one more — and nothing else in that row is known from the clue alone.

An empty clue means the whole line is empty, and a clue equal to the line length means the whole line is filled. Those are the only two free rows you will get.

How to solve one without guessing

Start with counting. If a row is ten cells wide and its clue is 6, the block can only slide from the first cell to the fifth, so the four cells in the middle are filled whatever happens. That is the overlap rule and it is what makes most of a puzzle fall out without any guessing.

Then use what you have filled to constrain the other direction: every filled cell rules out the rest of its column for that number's neighbours, and every complete block gives you the empty cell on each side of it. Cross out cells you have proved empty — a pencil mark now saves an erasure later.

If you get stuck, the nonogram solver takes the same clues and will either finish the grid or tell you the clues fit more than one picture.

How to print

  • Print at 100 percent. The grids are sized in millimetres on the page, so a "fit to page" setting shrinks the cells until a pencil does not fit.
  • Black and white is fine — the answer sheet uses solid fills, not colour.
  • Print page one twice if two people are solving, and keep page two for checking.
  • Photocopy as many as you need for a class or a club. No attribution is required on the copy.

More puzzles

The nonogram game has four puzzles you fill in with a mouse or a finger, plus hints and a timer, and the daily nonogram is the same grid for every player on a given day. If you want more paper, the printables library has word searches, sudoku and mazes.