[eluser]TheFuzzy0ne[/eluser]
Welcome to the CodeIgniter forums.
You're missing a "+".
At the moment, the route only matches a single character after "horse-wiki/".
Code:
$route['horse-wiki/([a-z]+)/#([a-z]+)'] = "wiki/singlewiki/$1";
I'm not sure that that will do it, however. I think it would need to be more like this:
Code:
$route['horse-wiki/([a-z]+)/#([a-z]+)'] = "wiki/singlewiki/$1/$2";
Hopefully, that should do what you want.
All the best.