400. That’s an error.

Google cannot redirect you to http://worldcat.org/search?q=Neue+theoretisch-practische+Anweisung+zum+Schachspiele+5+Tabellen+...+mit+1+Kupfer+6+Taf because the request was invalid.

This might be because the link was created a long time ago. Try your search again on Google. That’s all we know.