A good friend of mine is moving on up in the world, and to prove it, he recently upgraded his cell phone. His new phone is one of several that has a clever password feature – instead of entering a traditional password, one creates a shape within a 9 point grid, like a miniature connect the dots. Here’s one video explaining the feature:
The rules for the patterns are fairly simple, but to make things crystal clear, let me label the dots in the grid as follows:
Here are the rules constraining the types of patterns you can make:
The pattern must connect at least 4 dots.
No dot may be used more than once.
The order in which the dots are connected matters.
Two dots which are on opposite sides of the grid (e.g. 1 and 9, 2 and 8, 1 and 3) cannot be connected together directly without going through the dot between . . . → Read More: Secure Your Phone with Pretty Pictures