Contents of Key to solution for Slither Link

Key to solution for Slither Link

Basic rules


Rule of adjacent "3 and 0"


In this example, "3" and "0" are next to each other.
No lines can be drawn on the four edges around "0".
Then you can draw lines on the remaining three edges around "3".
And, since there are only one way for the parallel lines around "3" to go, they will be extended like this.
Rule of adjacent "3 and 0"

Contents of Key to solution for Slither Link