Nonogram

Play Nonogram free online, with no sign-up or download. Use the numbers around the grid to reveal a small picture. Fill the right squares and mark empty cells with crosses. Choose a 5×5, 10×10 or 15×15 grid and solve either the daily challenge or a free puzzle.

Reading the number clues

Numbers on the left belong to that row. Numbers above the grid refer to the column beneath them. Each number describes one continuous block of filled cells. Keep the given order: read rows from left to right and columns from top to bottom.

Leave at least one empty cell between blocks. The clue “2 1” means two filled cells together, at least one empty cell, then one filled cell. Blocks do not have to start at the edge. A zero means the entire row or column stays empty.

A simple starting point

Start with the 5×5 grid. A row with the clue “5” is completely filled. With “1 1 1”, one empty cell separates each of the three single filled cells, so all five positions are determined too.

Overlapping possibilities also help: a block of three in a row of five must always include the middle cell. You can fill that cell even before knowing the block’s two ends. Then compare the clues in the intersecting columns.

Three grid sizes

• 5×5: 25 cells for short rounds and learning the rules.
• 10×10: 100 cells with more rows and columns to combine.
• 15×15: 225 cells for larger pictures and longer rounds.

Size describes the grid’s dimensions, not a fixed difficulty level. Spielaro creates its own geometric pictures and patterns. Before selecting a puzzle, a solver checks that every cell can be determined from row and column clues. Every offered puzzle has exactly one solution; guessing is not required.

Filling, marking empty and erasing

Choose “Fill” and tap cells that belong to the picture. Use “Empty” to place crosses on blank cells. “Erase” removes a mark. Tapping an existing mark again with the same tool also removes it. Right-click to place a cross directly.

Use Tab to reach the grid. Arrow keys move between cells, and Space or Enter uses the selected tool. X places a cross; Delete or Backspace erases. On a phone, you can scroll a large grid sideways within the board. Row clues stay visible along its left edge.

“Marked” counts all filled or crossed cells, even if some choices are wrong. Fully marked rows and columns that match their clues turn green. A red clue means the current marks do not fit that clue.

Hints and undo

“Hint” highlights a cell and explains its value. Only “Apply hint” makes the suggested mark and increases the hint counter. If a mark is wrong, the helper explicitly identifies a correction using the unique solution.

“Undo” takes back up to 100 marks individually. You can also undo an applied hint. Elapsed time and the number of hints used are kept. There is no time limit or penalty for mistakes.

The picture is solved when all picture cells are filled correctly and no extra cell is coloured. Remaining empty cells are automatically crossed out. “View picture” closes the success message so you can inspect the finished pattern.

Daily puzzles and saved progress

The daily game gives everyone the same puzzle for each date and grid size. The date is based on Berlin time. Reload the page after the date changes to open the next challenge.

In free play, “New puzzle” selects another picture. “Restart” repeats the current puzzle. Each of the three sizes keeps separate progress for the daily game and free play. Marks, time, hints and undo history survive switching and reloading, provided local browser storage is allowed. Other devices do not inherit these saves; clearing site data removes them.

For more number logic, try Sudoku. If you enjoy combining clues on a hidden board, try Minesweeper. Find every free title in the game catalogue.