Hard Nonogram Puzzles

Get our free printable Nonogram puzzles. These hard Picross puzzles will challenge your logic skills and keep you entertained. Print them out and start solving now. These are perfect for puzzle lovers who enjoy a good brain workout.

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Basic Rules / How to Play

  • Grid Structure: The puzzle consists of a blank grid (usually ranging from 5×5 to 25×25 or larger). Each row and column has a sequence of numbers indicating the lengths of consecutive filled blocks. Example: A row clue 3 1 means there are two groups of filled squares: first a block of 3, then a block of 1, separated by at least one empty space.
  • Filling the Grid: Black squares represent filled blocks. White squares represent empty spaces (sometimes marked with an "X"). The numbers on the edges describe the exact order of filled blocks.
  • Constraints: Blocks must appear in the exact order given. There must be at least one empty square between different blocks. The puzzle is solved when all row and column clues are satisfied.

Need Help?

To get started, check out these detailed instructions, goals and rules for how to solve Nonogram puzzles