How to Play Mosaic
Shade cells in a grid where each numbered cell indicates how many of its own and its surrounding cells (up to 9) are shaded.
Try it now — Easy 8x8 →The Rules
- Shade cells so that each numbered cell's count equals the total shaded cells in its 3×3 neighborhood (including itself)
- A "0" means no shaded cells in its 9-cell neighborhood; a "9" means all nine are shaded
- Cells without a number can be shaded or unshaded — deduced from neighboring clues
- Every cell is either shaded or unshaded; no cell is left ambiguous
Available in 4 sizes (6x6, 8x8, 10x10, 15x15) and 3 difficulty levels (easy, normal, hard).
See It in Action
Shade cells so each number equals how many of its up-to-9 surrounding neighbors are shaded
How to Play
- Start with "0" clues — all cells in the surrounding 3×3 area are unshaded
- Start with "9" clues — all cells in the surrounding 3×3 area are shaded
- Use overlapping neighborhoods: a cell covered by multiple clues must satisfy all of them simultaneously
- Narrow ambiguous cells by combining constraints from nearby numbered cells
Pro Tips
"0" and "9" clues are the most powerful — they determine up to 9 cells instantly
Edge and corner cells have smaller neighborhoods (6 or 4 cells), so their clues are more restrictive
If two adjacent clues differ by 1, the cells in one neighborhood but not the other are often forced
Frequently Asked Questions
What is Mosaic?
Mosaic is a grid puzzle where numbers indicate how many of the cells in a 3×3 neighborhood (including the numbered cell itself) should be shaded. It combines Nonogram and Minesweeper logic.
Choose Your Challenge
Start with easy to learn the rules, then progress to harder difficulties.