Nonogram

Nonogram is a picture logic puzzle. The numbers beside each row and above each column tell you the lengths of the runs of filled squares in that line, in order. By combining the clues you decide which squares are filled and which are empty, and slowly a picture appears. Choose a small 5×5, medium 10×10 or large 15×15 grid. Every puzzle can be solved by logic alone, without guessing. Play Nonogram free online in your browser — no download or sign-up needed.

Time 0:00Filled 0Best —

The numbers beside each row and above each column give the lengths of the runs of filled squares, in order. Fill squares to match every clue, and cross out squares you know are empty. Click or drag to paint; right-click crosses out. A clue turns grey when its line is complete. Keyboard: X switches tool, U undo, H hint.

Game Information

Category
Puzzle Games
Players
Single player
Difficulty
5×5, 10×10 and 15×15 grids
Game type
Logic, Picture, Numbers
Works on
Desktop and mobile browsers
Controls
  • Mouse: click or drag to fill, right-click or the Cross out tool to mark empty squares
  • Touch: tap or drag with the chosen tool
  • Keyboard: X switches tool, U undo, H hint, N new puzzle
Features
  • Three grid sizes
  • Puzzles that can be solved by logic alone
  • Drag to paint several squares at once
  • Cross-out marks
  • Clues turn grey when a line is complete
  • Undo, hint and best time saved

How to Play Nonogram

Objective

Fill squares so that every row and column matches its number clue.

Starting a game

Pick a size. The grid is empty; start with the clues that fill most of a line.

Rules

  • A clue lists the lengths of the runs of filled squares in order.
  • Runs are separated by at least one empty square.
  • A single 0 means the line is empty.
  • Crossed squares count as empty.

Controls

  • Mouse: click or drag to fill, right-click or the Cross out tool to mark empty squares
  • Touch: tap or drag with the chosen tool
  • Keyboard: X switches tool, U undo, H hint, N new puzzle

Winning and losing

You win when every row and column matches its clue. The puzzle is always solvable by logic.

Tips and Strategies

  • Lines whose clues fill the whole length can be filled at once.
  • In a line with a large run, the middle squares must be filled even before you know where it sits.
  • Cross out squares you know are empty; it helps with neighbouring lines.
  • Work back and forth between rows and columns.
  • Grey clues are complete, so you can ignore them.

Frequently Asked Questions

Will I have to guess?

No. Each puzzle is checked by a line solver, so logic is enough.

What does the cross do?

It marks a square as empty. It helps you think but is not needed for the solution.

How do I paint several squares?

Press and drag across squares to fill them all in one move.

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