User-agent: Yandex
Disallow: /engine/opensearch.php
Disallow: /towerlinks.php
Disallow: /link.php
Disallow: /linkoff.php

User-agent: Google
Disallow: /engine/opensearch.php
Disallow: /towerlinks.php
Disallow: /link.php
Disallow: /linkoff.php

User-agent: *
Allow: /