18 / NONOGRAM
Nonogram
Fill runs of cells to match the numbers on every line.
Nonogram board
Press and drag to paint many cells at once. The right mouse button marks X; on a keyboard, Space fills and X marks.
QUICK GUIDE
How to play.
- 01
Read the hints
Numbers on the left are the lengths of filled runs in that row, and numbers on top are for that column. For example, 3 1 means three cells, at least one gap, then one cell.
- 02
Fill and mark
Fill the cells you are sure about and mark the ones that must stay empty with X. Press and drag to change many cells at once.
- 03
Complete the grid
Match every line clue to finish. Clues of lines you have matched fade, so you can see your progress.
Frequently asked questions
Do any puzzles need guessing?
No. Only puzzles that line-by-line reasoning can finish are used, so each has a single answer you can reach by logic alone.
Where should I start?
Start with lines that have big numbers. An 8 in a 10-cell line overlaps itself in the middle 6 cells wherever it sits, so those must be filled.
What does the picture show?
The patterns here are random, so every puzzle is new. In exchange, only puzzles that logic can solve are chosen.
Where are my scores saved?
Only your fastest time for each size and day is saved in this browser, and it is never sent to a server.