EveryMemoryNonogram
Use the row and column number clues to deduce which squares to fill and reveal the hidden picture. A free nonogram (picross) puzzle you can play right here.
⚡ Quick answer
A nonogram is a logic grid puzzle where numbers beside each row and column give the lengths of the filled blocks in that line, and you use pure deduction to work out which cells are filled. It trains deductive reasoning and cross-checking. Our puzzles compute clues directly from a generated solution, so they're always consistent. The fair score is your solve time against your own best.
Key takeaways
- Row and column numbers give the lengths of filled runs in each line.
- Use pure deduction - Fill cells and Mark X to rule cells out - to solve it.
- Clues are computed from the solution, so every puzzle is consistent.
- Trains deductive logic and cross-checking; beat your own fastest time.
A nonogram - also called picross or a griddler - is a logic puzzle where numbers along each row and column tell you the lengths of the filled runs in that line. From those clues alone you deduce, cell by cell, which squares are filled, gradually revealing a hidden picture.
Play the 5x5 puzzle above (tap to fill, switch to Mark X to rule cells out), then read on for how to solve it and what it trains.
How to play
Each clue is the size of one block of filled cells, in order, separated by at least one gap.
- Tap New puzzle. Read the numbers above each column and beside each row.
- In Fill mode, tap a cell to fill it; switch to Mark X to flag a cell you've ruled out.
- A row clue of '2 1' means a run of two filled cells, a gap, then a run of one.
- Match the filled cells to the solution to win; your fastest time is saved on your device.
It all runs in your browser - no sign-up, nothing sent anywhere.
What it trains
Nonograms are a focused deductive-logic workout:
- Deductive reasoning - forcing cells from what the clues allow.
- Cross-checking - using row and column clues together.
- Working memory - holding partial deductions while you scan.
Like any single puzzle, it mostly makes you better at nonograms - enjoyable practice, not a proven general brain boost.
A simple solving method
Beginners do well starting with the most constrained lines:
- Look for clues that fill a whole line (a 5 in a 5-wide grid fills the row).
- For big clues, mark the cells that must be filled no matter how the block slides.
- Mark X on cells a clue can't reach, then re-read the crossing clues.
The honest way to read your score
Compare your solve time only to your own past runs - clue difficulty varies puzzle to puzzle, so there's no universal target.
If you like grid logic, try sudoku and Lights Out, and use the memory test online for a repeatable self-check.
⚠ When to talk to a professional
This is a non-medical logic puzzle for fun and practice, not a test of intelligence or brain health. Performance varies with practice and familiarity. If you're worried about a real, persistent change in your thinking, speak with a qualified healthcare professional rather than reading anything into a game score.
