Medium What is a Nonogram?

Nonograms, also known as Picross, Griddlers, or Hanjie, are picture logic puzzles where you reveal a hidden image by filling cells in a grid. Using number clues on the side and top of the grid, you determine which cells should be filled and which should remain empty. Each number represents a consecutive group of filled cells in that row or column. These addictive puzzles combine logical deduction with artistic revelation, making them perfect for puzzle enthusiasts of all skill levels.

How to Play

Follow these steps to solve nonogram puzzles:

1. Read the numbers on the left side of each row and above each column. These are your clues.
2. Each number indicates a consecutive group of filled cells in that line.
3. Multiple numbers mean multiple separate groups with at least one empty cell between them.
4. Use logical deduction to determine which cells must be filled or empty.
5. Mark cells you know should be empty with an X to help track your progress.
6. Complete all rows and columns correctly to reveal the hidden picture.
7. You have 3 lives - lose one for each incorrect cell filled.
8. Use hints if you get stuck, but try to solve puzzles independently for the best experience.

Strategy Tips

Master nonograms with these expert strategies:

• Start with rows and columns that have large numbers or are nearly complete.
• Look for clues where the sum of numbers (plus minimum spaces) equals the line length.
• Mark definite empty cells with X to avoid confusion and aid visualization.
• Work on multiple lines simultaneously - solving one often helps with others.
• Look for overlapping possibilities when there's only one way to fit large groups.
• Use completed lines to deduce cells in intersecting lines.
• Pay attention to edge cells - they often provide important clues.
• Take breaks if stuck - fresh eyes often spot patterns you missed.
• Practice with easier puzzles to build pattern recognition skills.
• Remember: every puzzle is solvable through pure logic!

Game Rules

• Numbers indicate consecutive filled cells in a row or column.
• Multiple numbers in a clue are separated by at least one empty cell.
• A clue of '0' means the entire row or column should be empty.
• The order of numbers matches the order of groups from left to right (rows) or top to bottom (columns).
• Each incorrect cell fill costs one life. You start with 3 lives.
• The puzzle is complete when all cells are correctly filled or marked empty.
• You can undo moves if you make a mistake.
• Hints will reveal one correct cell, but use them wisely!
• There is only one valid solution for each puzzle.
• All puzzles can be solved using logic alone - no guessing required!