How to solve a nonogram

Each number is a run of filled cells. That's all you need to start. The trick is finding cells that must be filled wherever the run goes.

Nonogram rules

1
Each row has numbers on the left and each column has numbers on top.
2
The numbers are runs of filled cells in that row or column. "3 1" means three filled cells in a row, at least one gap, then one filled cell, in that order.
3
A row or column marked "0" has no filled cells.
4
Fill the cells so every row and column matches its numbers to solve the puzzle.
5
Every puzuru puzzle can be solved from the row and column numbers by logic alone, and has exactly one answer.

Tips to solve faster

Start with the biggest numbers. An 8 in a row of 10 always covers the middle 6 cells, wherever it goes (the overlap).
Mark cells you know stay empty with ✕. Each ✕ narrows down where the runs can go.
Once an edge cell is filled, you can fill the rest of that run straight away.
Numbers fade when their row or column is complete. Look again at the rows that haven't faded.

Play Nonogram →

FAQ

Is it free? Do I need to sign up?

It's free and there's no sign-up. It runs right in your browser.

Do any puzzles need guessing?

No. Every puzzle is checked by a program to be solvable from the row and column numbers alone, with exactly one answer.

What sizes are there?

5×5, 10×10, 15×15 and 20×20, with 400 puzzles each. Start with 5×5 if you're new.

How do I mark ✕ on a phone?

Tap "✕ Mark" above the grid, then tap cells. Tap it again to go back to filling.

What if I close the page?

On the same device and browser, each size continues where you left off.

More games

SolitaireClassic Klondike. Every deal is checked to be winnable.SudokuSeven levels, Easy to Evil. Every puzzle has exactly one solution.Mahjong SolitaireClear the board by matching pairs of tiles.Spider SolitaireBuild runs from King to Ace. Every deal is verified winnable.CheckersThe classic jump-and-capture board game. Five computer levels, or play a friend on the same device.FreeCellFour free cells, pure strategy. Classic game numbers, every deal verified winnable.HeartsThe classic trick-taking card game. Play against 3 computer opponents.Reversi (Othello)The classic disc-flipping board game. Five computer levels, or play a friend on the same device.GomokuGet five in a row before your opponent. A 15×15 board, five computer levels, or play a friend on the same device.MancalaSow stones and fill your store. The popular six-pit, four-stone rules, five computer levels, or play a friend on the same device.Four in a RowDrop discs and line up four before your opponent. A 7×6 board, five computer levels, or play a friend on the same device.Five DiceRoll five dice up to three times, make combinations and fill 15 boxes. Go for a high score solo, or play the computer or a friend.Tic-Tac-ToeGet three in a row before your opponent on a 3×3 grid. Five computer levels, or play a friend on the same device.Mahjong ConnectJoin matching mahjong tiles with a line of up to two turns. Three board sizes up to the classic 8×17. Every deal can be cleared.DaifugoThe Japanese climbing card game: be first to empty your hand. 8-stop, revolution and the card exchange, 5 rounds against 3 computer players.Gin RummyDraw, discard and meld your hand into sets and runs. Knock with 10 or less deadwood or go gin. One-on-one against the computer, first to 100 wins.Word SearchFind the hidden words across, down and diagonally. Ten themes, three sizes from 8×8 to 15×15, a new puzzle every time, and printable.SevensBuild each suit out from the 7s and be first to empty your hand. Up to 3 passes per round, 5 rounds against 3 computer players.Tower of HanoiMove the whole stack of disks to the right rod, one disk at a time, never placing a larger disk on a smaller one. 3 to 8 disks, aim for the minimum moves.Sliding PuzzleSlide the tiles into the empty space to put the numbers in order. 3×3, 4×4 (the classic 15 puzzle) and 5×5. A new, solvable puzzle every time.Yukon SolitaireA Klondike-style solitaire with no stock pile. Any face-up card moves together with the cards on top of it. Every deal can be won.Scorpion SolitaireBuild down in suit and complete four columns from King to Ace. Any face-up card moves together with the cards on top of it.SpadesThe classic partnership card game where spades are trump. Team up with a computer partner.BackgammonRoll the dice and race your 15 checkers home. Five computer levels, or play a friend on the same device.2048Slide and merge matching tiles to reach 2048. Boards from 3×3 to 6×6, with undo.MazeDrag from start to exit. 8×13 to 30×53, a new maze every time, and printable.Matching GameTurn over two cards and match the pictures. Animals, food and vehicles, 8 to 24 pairs.ConcentrationThe classic memory card game: turn over two cards and match pairs. Four levels, 8 to 24 pairs.TriPeaks SolitaireChain cards one higher or lower to clear three peaks of cards.Golf SolitairePlay cards one higher or lower to clear all seven columns. Every deal is winnable.Pyramid SolitairePair cards that add up to 13 to clear the pyramid. Every deal is winnable.MinesweeperOpen every safe cell using the numbers. Every board can be solved by logic alone.Killer SudokuNo given numbers. Solve it from the cage sums alone.