User-agent: Mediapartners-Google*
Disallow: 

User-agent: *
Disallow: /wiki/Special:Randompage
Disallow: /wiki/Special%3ARandompage
Disallow: /wiki/Special:Search
Disallow: /wiki/Special%3ASearch
Disallow: /wiki/Special:Recentchanges
Disallow: /wiki/Special%3ARecentchanges
Disallow: /index.php