I've always been interested in puzzles that can be solved under 2 different rules. It won't be a regular feature as I don't think I can pull it off every time I try. It's just something I find interesting and sometimes give a go. There's a lot of puzzle types out there that look the same at first sight, so there's enough options for me to try it with.
Rules for Slitherlink
This time it's two slitherlinks. You can solve this puzzle as a regular Slitherlink puzzle. It's not too difficult, but still fun.
You can also solve it as a Toroidal Slitherlink. Here the edges of the grid wrap around on eachother, which turns opposite edges of dots into the same line. This means the loop can run from one edge and continue on the other side.
Not every puzzle type will give the possibility to create a puzzle that is both regular and toroidal. This one works as in runs over the grid lines.