### Rules of Yajirin

- Draw a line to make a single loop.
- Squares with numbers and arrows tell you how many black squares are between that square and the edge of the grid.
- Other squares must either have a line running through it, or be blacked out.
- The loop cannot branch or cross over itself.
- You cannot have two black squares touching each other. (Diagonal is OK)

### Controls

- Click in the middle of a square to toggle between blank, black and 'dot'
- 'Dot' can be used as a hint to indicate which squares
*must* contain a line and cannot be blacked out.
- Click between squares to add or remove a line.